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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#252267#7751. Palindrome Pathucup-team1447#AC ✓301ms199132kbC++1412.1kb2023-11-15 17:28:062023-11-15 17:28:07

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你现在查看的是最新测评结果

  • [2023-11-15 17:28:07]
  • 评测
  • 测评结果：AC
  • 用时：301ms
  • 内存：199132kb
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  • [2023-11-15 17:28:06]
  • 提交

answer

// Problem: B. Doremy's Connecting Plan
// Contest: Codeforces - Codeforces Round 906 (Div. 1)
// URL: https://codeforces.com/contest/1889/problem/B
// Memory Limit: 256 MB
// Time Limit: 1000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

// dottle bot
#ifndef ONLINE_JUDGE
#define DEBUG
#endif
#include <stdio.h>
#include <string.h>
#include <algorithm>
#include <queue>
#include <vector>
#include <time.h>
#include <map>
#include <assert.h>
#include <math.h>
#include <set>
#define nln puts("")
#define od(x) printf("%d",x)
#define odb(x) printf("%d ",x)
#define odl(x) printf("%d\n",x)
#define odp(x,y) printf("%d %d\n",x,y)
#define ol(x) puts("")
#define old(x) printf("%lld",x)
#define oldb(x) printf("%lld ",x)
#define oldl(x) printf("%lld\n",x)
#define oldp(x,y) printf("%lld %lld\n",x,y)
#define rg(x) for(int i=1;i<=(x);i++){
#define rg_(i,x) for(int i=1;i<=(x);i++){
#define fe(u) for(int i=h[u];i;i=e[i].nxt){int v=e[i].v;
#define gr }
#define rrg(x) for(int i=0;i<(x);i++){
#define rdln(a) a[i]=read();
#define rdln0(a,x) rrg(x) rdln(a) gr
#define rdln1(a,x) rg(x) rdln(a) gr

// #define int long long
const int mod=998244353;
#ifdef int 
#define inf 0x3f3f3f3f3f3f3f3fll
#else 
#define inf 0x3f3f3f3f
#endif
inline int min(int a,int b){return a>b?b:a;}
inline int max(int a,int b){return a<b?b:a;}
#define cmlSEGMIN
#define cmlSEGMAX
#define cmlSEGSUM
class SegTreeAl{
#ifdef cmlSEGMIN
	int minn[1000005<<2];
#endif
#ifdef cmlSEGMAX
	int maxn[1000005<<2];
#endif
#ifdef cmlSEGSUM
	int sum[1000005<<2];
#endif
	int tag[1000005<<2];
#ifdef cmlSEGSUM
	void pushdown(int o,int l,int r)
#else 
	void pushdown(int o)
#endif
	{
		int&t=tag[o];
#ifdef cmlSEGMIN
		minn[o<<1]+=t;
		minn[o<<1|1]+=t;
#endif
#ifdef cmlSEGMAX
		maxn[o<<1]+=t;
		maxn[o<<1|1]+=t;
#endif
#ifdef cmlSEGSUM
		int m=l+r>>1;
		sum[o<<1]+=t*(m-l+1);
		sum[o<<1|1]+=t*(r-m);
#endif
		tag[o<<1]+=t;
		tag[o<<1|1]+=t;
		t=0;
	}
	void add(int o,int l,int r,int L,int R,int v)
	{
		if(L<=l&&r<=R)
		{
#ifdef cmlSEGMAX
			maxn[o]+=v;
#endif
#ifdef cmlSEGMIN
			minn[o]+=v;
#endif
#ifdef cmlSEGSUM
			sum[o]+=v*(r-l+1);
#endif
			tag[o]+=v;
			return;
		}
		int m=l+r>>1;
#ifdef cmlSEGSUM
		pushdown(o,l,r);
#else
		pushdown(o);
#endif
		if(L<=m)add(o<<1,l,m,L,R,v);
		if(m<R)add(o<<1|1,m+1,r,L,R,v);
#ifdef cmlSEGMAX
		maxn[o]=max(maxn[o<<1],maxn[o<<1|1]);
#endif
#ifdef cmlSEGMIN
		minn[o]=min(minn[o<<1],minn[o<<1|1]);
#endif
#ifdef cmlSEGSUM
		sum[o]=sum[o<<1]+sum[o<<1|1];
#endif
	}
#ifdef cmlSEGMIN
	int qmin(int o,int l,int r,int L,int R)
	{
		if(L<=l&&r<=R)
		{
			return minn[o];
		}
		int m=l+r>>1,res=inf;
#ifdef cmlSEGSUM
		pushdown(o,l,r);
#else
		pushdown(o);
#endif
		if(L<=m)res=min(res,qmin(o<<1,l,m,L,R));
		if(m<R)res=min(res,qmin(o<<1|1,m+1,r,L,R));
#ifdef cmlSEGMAX
		maxn[o]=max(maxn[o<<1],maxn[o<<1|1]);
#endif
#ifdef cmlSEGMIN
		minn[o]=min(minn[o<<1],minn[o<<1|1]);
#endif
#ifdef cmlSEGSUM
		sum[o]=sum[o<<1]+sum[o<<1|1];
#endif
		return res;
	}
#endif

#ifdef cmlSEGMAX
	int qmax(int o,int l,int r,int L,int R)
	{
		if(L<=l&&r<=R)
		{
			return maxn[o];
		}
		int m=l+r>>1,res=-inf;
#ifdef cmlSEGSUM
		pushdown(o,l,r);
#else
		pushdown(o);
#endif
		if(L<=m)res=max(res,qmax(o<<1,l,m,L,R));
		if(m<R)res=max(res,qmax(o<<1|1,m+1,r,L,R));
#ifdef cmlSEGMAX
		maxn[o]=max(maxn[o<<1],maxn[o<<1|1]);
#endif
#ifdef cmlSEGMIN
		minn[o]=min(minn[o<<1],minn[o<<1|1]);
#endif
#ifdef cmlSEGSUM
		sum[o]=sum[o<<1]+sum[o<<1|1];
#endif
		return res;
	}
#endif

#ifdef cmlSEGSUM
	int qsum(int o,int l,int r,int L,int R)
	{
		if(L<=l&&r<=R)
		{
			return sum[o];
		}
		int m=l+r>>1,res=0;
#ifdef cmlSEGSUM
		pushdown(o,l,r);
#else
		pushdown(o);
#endif
		if(L<=m)res+=qsum(o<<1,l,m,L,R);
		if(m<R)res+=qsum(o<<1|1,m+1,r,L,R);
#ifdef cmlSEGMAX
		maxn[o]=max(maxn[o<<1],maxn[o<<1|1]);
#endif
#ifdef cmlSEGMIN
		minn[o]=min(minn[o<<1],minn[o<<1|1]);
#endif
#ifdef cmlSEGSUM
		sum[o]=sum[o<<1]+sum[o<<1|1];
#endif
		return res;
	}
#endif
};
#define newe(n) struct Edge{int v,w,nxt;}e[2*n+5];\
typedef int arr[n+5];\
arr h;\
int cnt=1;\
inline void addedge(int u,int v,int w){e[cnt]=(Edge){v,w,h[u]};h[u]=cnt++;}\
struct node{\
	int u,d;\
	bool operator<(const node&b)const{return d>b.d;}\
};\
void dij(int s,int *d,int N)\
{\
	memset(d,0x3f,sizeof(int)*(N+3));\
	d[s]=0;std::priority_queue<node>q;q.push((node){s,0});\
	while(!q.empty())\
	{\
		int u=q.top().u,D=q.top().d;q.pop();if(D!=d[u])continue;\
		for(int i=h[u];i;i=e[i].nxt){int v=e[i].v,w=e[i].w;\
		if(d[u]+w<d[v])d[v]=d[u]+w,q.push((node){v,d[v]});\
		}\
	}\
}
#define mgs int fa[1<<22],sz[1<<22];\
inline int f(int x){return x==fa[x]?x:fa[x]=f(fa[x]);}\
inline int uf(int x,int y)\
{\
    int fx=f(x),fy=f(y);\
    if(fx==fy)return 0;\
    if(sz[fx]>sz[fy])fx^=fy^=fx^=fy;\
    fa[fx]=fy,sz[fy]+=sz[fx];\
    return 1;\
}
inline int read()
{
    int num=0,f=1;char c=getchar();
    while(c<48||c>57){if(c=='-')f=-1;c=getchar();}
    while(c>47&&c<58)num=num*10+(c^48),c=getchar();
    return num*f;
}
inline int re1d()
{
    char c=getchar();
    while(c<48||c>49)c=getchar();
    return c&1;
}
#ifdef cmlBIT
struct BIT{int a[1<<20|1],n;
void add(int x,int p){while(x<=n)a[x]+=p,x+=x&-x;}
int operator[](int x){int res=0;while(x)res+=a[x],x-=x&-x;return res;}
int operator()(int l,int r){return (*this)[r]-(*this)[l-1];}};
#endif
int rnv[1000005];
// #define COMB
#ifdef COMB
#ifndef int
#define int long long
#endif
int fac[1000005],inv[1000005];
#endif
void initprog()
{
#ifdef COMB
	fac[0]=inv[0]=inv[1]=1;
	rg(1000000)fac[i]=fac[i-1]*i%mod;gr
	rg(1000000)if(i>1)inv[i]=inv[mod%i]*(mod-mod/i)%mod;gr
	rg(1000000)rnv[i]=inv[i];gr
	rg(1000000)inv[i]=inv[i]*inv[i-1]%mod;gr
#endif
}
#ifdef COMB
int C(int n,int m)
{
	if(n==m||m==0)return 1;
	if(n<m)return 0;
	return fac[n]*inv[m]%mod*inv[n-m]%mod;
}
#endif
inline int qp(int a,int b){int c=1;while(b){if(b&1)c=c*a%mod;a=a*a%mod;b>>=1;}return c;}
inline int mae(int &a,int b){a+=b;if(a>=mod)a-=mod;return a;}
inline int mde(int &a,int b){a+=mod-b;if(a>=mod)a-=mod;return a;}
inline int mle(int &a,int b){a=a*b%mod;return a;}
inline int mve(int &a,int b){a=a*qp(b,mod-2)%mod;return a;}
inline int mxe(int &a,int b){return a=a>b?a:b;}
inline int mne(int &a,int b){return a=a<b?a:b;}
inline int ae(int a,int b){int c=a+b;return c>=mod?c-mod:c;}
inline int de(int a,int b){return ae(a,mod-b);}
inline int me(int a,int b){return a*b%mod;}
inline int mive(int &a,int b){a=a*rnv[b]%mod;return a;}
inline int ive(int a,int b){return a*rnv[b]%mod;}
inline int ve(int a,int b){return a*qp(b,mod-2)%mod;}
#ifdef cmlST
struct STmin{
	int a[21][1000005],n;
	void init(int N,int *b)
	{
		n=N;
		rg(n)a[0][i]=b[i];gr
		rg(20)rg_(j,n-(1<<i)+1)a[i][j]=min(a[i-1][j],a[i-1][j+(1<<i-1)]);gr gr
	}
	int q(int l,int r)
	{
		int d=std::__lg(r-l+1);
		return min(a[d][l],a[d][r-(1<<d)+1]);
	}
};
struct STmax{
	int a[21][1000005],n;
	void init(int N,int *b)
	{
		n=N;
		rg(n)a[0][i]=b[i];gr
		rg(20)rg_(j,n-(1<<i)+1)a[i][j]=max(a[i-1][j],a[i-1][j+(1<<i-1)]);gr gr
	}
	int q(int l,int r)
	{
		int d=std::__lg(r-l+1);
		return max(a[d][l],a[d][r-(1<<d)+1]);
	}
};
#endif
#ifdef cmlSAM
struct SAM{
	int ch[1000005][26],lnk[1000005],len[1000005],lst=1,cc=1;
	int sz[1000005];
	void insert(int c)
	{
		len[++cc]=len[lst]+1;sz[cc]=1;
		int p=lst;lst=cc;
		while(p&&ch[p][c]==0)ch[p][c]=cc,p=lnk[p];
		if(p==0)lnk[cc]=1;
		else
		{
			int x=ch[p][c];
			if(len[p]+1==len[x])lnk[cc]=x;
			else
			{
				int q=cc;++cc;
				lnk[cc]=lnk[x];
				lnk[x]=lnk[q]=cc;
				len[cc]=len[p]+1;
				memcpy(ch[cc],ch[x],sizeof(ch[cc]));
				while(p&&ch[p][c]==x)ch[p][c]=cc,p=lnk[p];
			}
		}
	}
	newe(1000005);
	long long ans;
	void build()
	{
		rg(cc)addedge(lnk[i],i,0);gr
	}
	void dfs(int u)
	{
		fe(u)dfs(v),sz[u]+=sz[v];gr
		if(sz[u]>1)ans=max(ans,1ll*sz[u]*len[u]);
	}
}t;
#endif
int a[109][109],vis[109][109];
void dfs(int x,int y)
{
	if(vis[x][y])return;
	vis[x][y]=1;
	dfs(x-1,y+0);
	dfs(x+1,y+0);
	dfs(x-0,y+1);
	dfs(x-0,y-1);
}
int sx,sy,tx,ty;

int dir[4][2]={1,0,-1,0,0,1,0,-1},cc,dd;
char R[14]="DURL";
char res[1234567],kes[1234567];
void walk(int d)
{
	res[++cc]=R[d];
	tx+=dir[d^1][0],ty+=dir[d^1][1];
	int A=sx,B=sy;
	
	A+=dir[d][0],B+=dir[d][1];
	if(a[A][B]==0)sx=A,sy=B;
}
using pi=std::pair<int,int>;
struct wew{
	int sx,sy,tx,ty;
	// bool operator<(const wew&v)const{
		// return d>v.d;
	// }
};
wew walk(int sx,int sy,int tx,int ty,int d)
{
	tx+=dir[d^1][0],ty+=dir[d^1][1];
	int A=sx,B=sy;
	
	A+=dir[d][0],B+=dir[d][1];
	if(a[A][B]==0)sx=A,sy=B;
	// pi X={sx,sy},Y={tx,ty};
	return {sx,sy,tx,ty};
}
wew walk2(int sx,int sy,int tx,int ty,int d)
{
	int C=tx+dir[d][0],D=ty+dir[d][1];
	// if(sx+sy+tx+ty==24&&R[d]=='L')
	if(a[C][D])
	{
	int A=sx,B=sy;
	
	A+=dir[d][0],B+=dir[d][1];
	if(a[A][B]==0)sx=A,sy=B;
	}
	// pi X={sx,sy},Y={tx,ty};
	return {sx,sy,tx,ty};
}
void dfs2()
{
	vis[tx][ty]=1;
	// odp(tx,ty);fflush(stdout);
	for(int i=0;i<4;i++)
	{
		if(vis[tx+dir[i^1][0]][ty+dir[i^1][1]])continue;
		walk(i);
		//
		dfs2();
		walk(i^1);
	}
}
int f[32][32][32][32],g[32][32][32][32];
wew h[32][32][32][32];
std::vector<std::pair<wew,int> >G[32][32][32][32];
int SX=sx,SY=sy,TX=tx,TY=ty;
int fis[66][66];
void qwq(char c)
{
	putchar(c);
	int p=SX,q=SY;
	fis[p][q]=1;
	if(c=='R')q++;
	if(c=='L')q--;
	if(c=='D')p++;
	if(c=='U')p--;
	if(a[p][q]==0)SX=p,SY=q;
	fis[SX][SY]=1;
	// odp(SX,SY);
}
signed main()
{
	initprog();
	int n=read(),m=read();
	rrg(100)rg_(j,100)a[i][j-1]=vis[i][j-1]=1;gr gr
	rg(n)rg_(j,m)vis[i][j]=a[i][j]=!re1d();gr gr
	sx=read(),sy=read(),tx=read(),ty=read();
	SX=sx,SY=sy,TX=tx,TY=ty;
	dfs(sx,sy);
	rg(n)rg_(j,m)if(vis[i][j]==0)return puts("-1"),0;gr gr
	rg(n)rg_(j,m)vis[i][j]=a[i][j];gr gr
	dfs2();
	// puts(res+1);
	// odp(sx,sy);
	// odp(tx,ty);fflush(stdout);
	memset(f,inf,sizeof(f));
	std::queue<wew>q;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++)
			if(a[i][j]==0)
			{
				q.push({i,j,i,j});
				f[i][j][i][j]=0;
				g[i][j][i][j]=-114;
			}
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++)
			if(a[i][j]==0)
			{
				for(int d=0;d<4;d++)
				{
					int x=i+dir[d][0],y=j+dir[d][1];
					if(a[x][y])continue;
					q.push({i,j,x,y});
					f[i][j][x][y]=1;
					g[i][j][x][y]=-d-1;
				}
			}
			
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++)
			if(a[i][j]==0)
				for(int x=1;x<=n;x++)
					for(int y=1;y<=m;y++)
						if(a[x][y]==0)
						{
							for(int d=0;d<4;d++)
							{
								for(int ee=0;ee<2;ee++)
								{
									wew c=ee?walk(i,j,x,y,d):walk2(i,j,x,y,d);
									auto [q,w,e,r]=c;
									wew t={i,j,x,y};
									G[q][w][e][r].push_back({t,d});
									// printf("[%d %d %d %d]->[%d %d %d %d]\n",i,j,x,y,q,w,e,r);
								}
							}
						}
	while(!q.empty())
	{
		auto [i,j,x,y]=q.front();q.pop();
		for(auto [c,d]:G[i][j][x][y])
		{
			// wew c=walk(i,j,x,y,d);
			auto [I,J,X,Y]=c;
			if(f[I][J][X][Y]==inf)
				f[I][J][X][Y]=f[i][j][x][y]+1,
				g[I][J][X][Y]=d,q.push(c),h[I][J][X][Y]={i,j,x,y};
		}
	}
	if(f[sx][sy][tx][ty]==inf)
	{
		// int *a
		while(clock()*1./CLOCKS_PER_SEC<0.5)tx=(tx+ty)%(sx+5);
		return puts("-1"),0;
	}
	// return 0;
	while(1)
	{
		int d=g[sx][sy][tx][ty];
		// printf("%d %d %d %d : %d\n",sx,sy,tx,ty,d);fflush(stdout);
		if(d<0)
		{
			// std::reverse(kes+1,kes+1+dd);
			// odl(dd);
			// puts(res+1);
			// puts(kes+1);
			for(int i=1;i<=cc;i++)qwq(res[i]);
			// puts("--");
			// printf("@@@@@@@@@@");odp(SX,SY);
			for(int i=1;i<=dd;i++)qwq(kes[i]);
			
			// printf("@@@@@@@@@@");odp(SX,SY);
			if(d>-10)
			{
				qwq(R[-d-1]);
			}
			
			for(int i=dd;i>=1;i--)qwq(kes[i]);
			// printf("@@@@@@@@@@");odp(SX,SY);
			for(int i=cc;i>=1;i--)qwq(res[i]);
			puts("");
			// rg(n)rg_(j,m)od(fis[i][j]);gr puts("");gr
			fflush(stdout);
			// assert(SX==TX);
			// assert(SY==TY);
			// rg(n)rg_(j,m)if(a[i][j]==0)assert(fis[i][j]);gr gr
			return 0;
		}
		// putchar(R[d]);
		kes[++dd]=R[d];
		wew t=h[sx][sy][tx][ty];
		auto [i,j,x,y]=t;
		sx=i;
		sy=j;
		tx=x;
		ty=y;
	}
	return 0;
}
源文件, 语言: C++14

这程序好像有点Bug，我给组数据试试？

详细

Test #1:

score: 100
Accepted
time: 4ms
memory: 38236kb

input:

2 2
11
11
1 1 2 2

output:

DRUDLURDRULDURD

result:

ok Valid Solution (Length = 15).

Test #2:

score: 0
Accepted
time: 0ms
memory: 28308kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 3ms
memory: 36956kb

input:

1 1
1
1 1 1 1

output:

result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 0ms
memory: 40024kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

DDDRUUUULLDDDDLUUUUDDDDRUUUURRDDDDLUUUDLDUUULDDDDRRUUUURDDDDUUUULDDDDLLUUUURDDD

result:

ok Valid Solution (Length = 79).

Test #5:

score: 0
Accepted
time: 0ms
memory: 40276kb

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

DDDDRRUUUURRDDDDLRUULRUULLLRDDLRDDLLUUUURRDDDDRRUUUULLDDRLDDRLLLUURLUURLDDDDRRUUUURRDDDD

result:

ok Valid Solution (Length = 88).

Test #6:

score: 0
Accepted
time: 0ms
memory: 40240kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

RDDLLRRUULLUURRLLDDRRDDLLRRUULLUURRLLDDR

result:

ok Valid Solution (Length = 40).

Test #7:

score: 0
Accepted
time: 0ms
memory: 39488kb

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UULDULUUDLDDDUUURDRRDDULUDDRRDRUUUDDDLDUULUDLUU

result:

ok Valid Solution (Length = 47).

Test #8:

score: 0
Accepted
time: 4ms
memory: 40772kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

RDUUUUDLLRRDDLLDURRLLUULLRRUDLLDDRRLLDUUUUDR

result:

ok Valid Solution (Length = 44).

Test #9:

score: 0
Accepted
time: 4ms
memory: 45008kb

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

DDDULUULRDDLDDRLLUUULRDDDRUURRUULDDLDDLUURRUURDDDRLUUULLRDDLDDRLUULUDDD

result:

ok Valid Solution (Length = 71).

Test #10:

score: 0
Accepted
time: 0ms
memory: 40156kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UULDDDLUDRUUUULDURDRDDLLDDRDRUDLUUUURDULDDDLUU

result:

ok Valid Solution (Length = 46).

Test #11:

score: 0
Accepted
time: 0ms
memory: 40348kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

UUURDDDRUUUDDDLUUULLDDDLUUUDDDRUUURDDDUUUDDDRUUURDDDUUULDDDLLUUULDDDUUURDDDRUUU

result:

ok Valid Solution (Length = 79).

Test #12:

score: 0
Accepted
time: 3ms
memory: 42652kb

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

UUUULLDDDDRLLLUUUURLDDRLDDRRUURLUURRDDDDUULLLLUUDDDDRRUULRUURRDDLRDDLRUUUULLLRDDDDLLUUUU

result:

ok Valid Solution (Length = 88).

Test #13:

score: 0
Accepted
time: 7ms
memory: 40480kb

input:

4 5
11111
10000
11111
00001
1 3 4 5

output:

DRRRRDDLLLLRRRRUULLLLUDDRRRRDDULLLLUURRRRLLLLDDRRRRD

result:

ok Valid Solution (Length = 52).

Test #14:

score: 0
Accepted
time: 2ms
memory: 28704kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

score: 0
Accepted
time: 0ms
memory: 40156kb

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

DDULUURLLDDLLDURRUULLRRRDDRUDLLLLDURDDRRRLLUURRUDLLDDLLRUULUDD

result:

ok Valid Solution (Length = 62).

Test #16:

score: 0
Accepted
time: 3ms
memory: 38288kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

RRDDRRUULRDDLLLLRRUULLRRDDRRLLUURRLLLLDDRLUURRDDRR

result:

ok Valid Solution (Length = 50).

Test #17:

score: 0
Accepted
time: 0ms
memory: 28996kb

input:

4 5
01110
10101
11011
10111
1 3 2 3

output:

-1

result:

ok No Solution.

Test #18:

score: 0
Accepted
time: 3ms
memory: 40496kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

DDDDRUUUUDDDDLLUUUULDDDDLUUUUDDDDRUUUURDDDDRUUUULDDDDLUUUURDDDDRUUUURDDDDUUUULDDDDLUUUULLDDDDUUUURDDDD

result:

ok Valid Solution (Length = 102).

Test #19:

score: 0
Accepted
time: 3ms
memory: 40024kb

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

DRRUUUULLDDRLLLDDRLUUUURLDDRRUURRDDDDLLUUUULLDDDDRRUURRDDLRUUUULRDDLLLRDDLLUUUURRD

result:

ok Valid Solution (Length = 82).

Test #20:

score: 0
Accepted
time: 5ms
memory: 43260kb

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

RRLLLLDDRRRRDDLLLLRRRRUULLLLUURRLLDDRRRRDDLLRRUULLLLUURRRRLLLLDDRRRRDDLLLLRR

result:

ok Valid Solution (Length = 76).

Test #21:

score: 0
Accepted
time: 2ms
memory: 28236kb

input:

5 5
01010
10101
10101
11001
10011
4 1 5 4

output:

-1

result:

ok No Solution.

Test #22:

score: 0
Accepted
time: 0ms
memory: 39872kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

RDUUUURDRDDDULRUUUDLULLDLDDDUUUUDRURDDDLRUUURLDDDRURDUUUUDDDLDLLULDUUURLUDDDRDRUUUUDR

result:

ok Valid Solution (Length = 85).

Test #23:

score: 0
Accepted
time: 0ms
memory: 44976kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

DDDRLLUUULDDDLDURUULUDRURDDDRUUULLDLLUUURDDDRURDULUURUDLDDDLUUULLRDDD

result:

ok Valid Solution (Length = 69).

Test #24:

score: 0
Accepted
time: 5ms
memory: 28380kb

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 3ms
memory: 43204kb

input:

10 8
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
7 7 3 6

output:

DDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUUDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULLDDDDDDLDDDLUUUUUUUUURDDDDDUUUUULDDDDDDDDDRUUURUUUUUURDDDDDDDDDLUUDDUUUUURRRUUUUUDDUULDDDDDDDDDRUUUUUURUUURDDDDDDDDDLUUUUUDDDDDRUUUUUUUUULDDDLDDDDDDLLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDUUUUUUUUURDDDDDDDDD...

result:

ok Valid Solution (Length = 333).

Test #26:

score: 0
Accepted
time: 3ms
memory: 47424kb

input:

10 6
111111
101010
111111
101010
111111
101010
111111
101010
111111
101010
1 6 2 3

output:

DRRUUUUUUUUUDLLDDDDDDRLLLDDRLLRUUUUUUUUUDRLLRDDRLLRDDRLLRDDLRRRUURLUURLUUUDRRDDDDDDDDLLULDLULLDDDDDDDDRRDUUULRUULRUURRRLDDRLLRDDRLLRDDRLLRDUUUUUUUUURLLRDDLLLRDDDDDDLLDUUUUUUUUURRD

result:

ok Valid Solution (Length = 179).

Test #27:

score: 0
Accepted
time: 0ms
memory: 46136kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 5 5 2

output:

RUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUUR

result:

ok Valid Solution (Length = 231).

Test #28:

score: 0
Accepted
time: 3ms
memory: 30044kb

input:

10 10
1010110101
0000011010
1001001001
0011111000
1000111100
1011101001
1100110011
0110001011
0011111000
0101011101
7 5 4 3

output:

-1

result:

ok No Solution.

Test #29:

score: 0
Accepted
time: 6ms
memory: 44460kb

input:

10 6
100100
111111
100001
111111
101111
111111
101010
111111
111100
111111
6 5 7 3

output:

DDDRRDDDULLLDULLUUUURDDRUUDDLUUUURUURDDRUURDDDDDULRUUUULDDLUULLLRRDDLLRDDLDDDDRRRRRUULLUUUDRRDDLLLLLDDRRDUUULLUURRRRRDDDDLDDRLLDDRRLLLUULDDLUUUURLUDDDDDRUURDDRUURUUUULDDUURDDRUUUULLUDLLLUDDDRRDDD

result:

ok Valid Solution (Length = 195).

Test #30:

score: 0
Accepted
time: 10ms
memory: 43064kb

input:

10 8
11111110
11110111
01111111
11111101
11011101
11111111
11111011
11011101
11001111
11111110
7 1 2 1

output:

DLUUUUUUUUURDDDDDDUUUUUULLLLDDDDDDDRDDRUUULUUUUDRDULDDDRDDDLLLUUUUULULDDDDDRDUUDLUUUUUUURURDDUULDLDDRDRDDDDDRRUULUUUUUUURRRDDDDDDDDDRULDLLLULLLDLURDDDDDDDDDRRRUUUUUUULUURRDDDDDRDRDDLDLUUDDRURUUUUUUULDUUDRDDDDDLULUUUUULLLDDDRDDDLUDRDUUUULUUURDDRDDDDDDDLLLLUUUUUUDDDDDDRUUUUUUUUULD

result:

ok Valid Solution (Length = 279).

Test #31:

score: 0
Accepted
time: 0ms
memory: 30412kb

input:

10 10
1111011101
1110111110
1111011111
1011101111
0101010111
1110111111
0111010111
1011111011
0111010101
1011111110
2 6 7 4

output:

-1

result:

ok No Solution.

Test #32:

score: 0
Accepted
time: 3ms
memory: 46448kb

input:

8 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
8 10 6 10

output:

DDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUUDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULLDURDDDDDDDLUUUUURRRRRDDDRRRRRUUUUULDDDDDDDRUDLLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDR...

result:

ok Valid Solution (Length = 329).

Test #33:

score: 0
Accepted
time: 3ms
memory: 43240kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
3 5 9 1

output:

DDDDDDDDLLUUUUUUUUUDRLLLDDDDDDDDRLLLUUUUUUUUUDRLLLDDDDDDDDRLLRUURLLRUURLLRUURLLRUUUDLRRRDDRLDDRLDDRLDDRRUURLUURLUURLUUUDRRDDRLDDRLDDRLDDRRUUUUUUUUUDDDDLDLLLDLDDDDUUUUUUUUURRDDLRDDLRDDLRDDRRDUUULRUULRUULRUURRDDLRDDLRDDLRDDRRRLDUUURLLRUURLLRUURLLRUURLLRDDDDDDDDLLLRDUUUUUUUUULLLRDDDDDDDDLLLRDUUUUUUUUUL...

result:

ok Valid Solution (Length = 309).

Test #34:

score: 0
Accepted
time: 0ms
memory: 44716kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 4 7 2

output:

RDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDR

result:

ok Valid Solution (Length = 231).

Test #35:

score: 0
Accepted
time: 2ms
memory: 29356kb

input:

9 10
1111001000
1110010111
0001001000
0101000101
1101000001
0111100110
0010010000
0001001000
1011001101
2 8 5 2

output:

-1

result:

ok No Solution.

Test #36:

score: 0
Accepted
time: 0ms
memory: 40096kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

DDDRUUUURDRUDRRURDDDDULLLDULRRRRUUULDLLLULDDDDLLULLDUUURUDRLLDDRRDRUUURRRUUURDRRDDLLRDURUUUDLLULLDDDDLULLLDLUUURRRRLUDLLLUDDDDRURRDURDRUUUURDDD

result:

ok Valid Solution (Length = 143).

Test #37:

score: 0
Accepted
time: 5ms
memory: 29564kb

input:

7 10
1111111001
1111101110
1111011111
1101011101
1111011111
1111001011
1111111011
7 10 7 2

output:

-1

result:

ok No Solution.

Test #38:

score: 0
Accepted
time: 6ms
memory: 48208kb

input:

9 10
0101011101
1111111111
0101111111
1111111111
1111110101
1011111111
1101111101
1111111011
1101011111
3 7 7 10

output:

DDDDDDURUURDDDRUUURDDDURUUUUUURDDDDDDDURRDUUUURDUUUUULDDULRURDDDDLLDUUDRDDDRLLLUUUUUUUDLLDDDULUUURLLLDLUDRURRDDLDDULRURDRUURDDDDDDLUULDDDLUUULDDLUUUUURRDRRDDRRDRRUUUUULDDLUUULDDDLUULDDDDDDRUURDRURLUDDLDDRRURDULDLLLRUUULUDDDLLDUUUUUUULLLRDDDRDUUDLLDDDDRURLUDDLUUUUUDRUUUUDRRUDDDDDDDRUUUUUURUDDDRUUURDD...

result:

ok Valid Solution (Length = 312).

Test #39:

score: 0
Accepted
time: 0ms
memory: 47424kb

input:

10 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
9 5 3 2

output:

DDRUUUUUUUUULDDDDDDLDDDLUUUUUUUUURDDDDDUUUUULLDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUURUUUUUURDDDDDDDDDLUUUURLLLLLULLLLLRUUUULDDDDDDDDDRUUUUUURUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURD...

result:

ok Valid Solution (Length = 413).

Test #40:

score: 0
Accepted
time: 6ms
memory: 46488kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
2 1 1 3

output:

UUUUUUUUUDRRDDDDDDDDLRUULRUULRUULRUUUDLLLLDDDDDDDDRLLLUUUUUUUUUDRLLLDDDDDDDDRLLRUURLLRUURLLRUURLLRUUUDLRRRDDRLDDRLDDRLDDRRUURLUURLUURLUUUDRRDDDDDDDDUUUUURRUUUUUDDDDDDDDRRDUUULRUULRUULRUURRDDLRDDLRDDLRDDRRRLDUUURLLRUURLLRUURLLRUURLLRDDDDDDDDLLLRDUUUUUUUUULLLRDDDDDDDDLLLLDUUURLUURLUURLUURLDDDDDDDDRRDU...

result:

ok Valid Solution (Length = 308).

Test #41:

score: 0
Accepted
time: 0ms
memory: 46588kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
7 4 3 5

output:

RRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRLLLLLUURRRRRRRRRUULLLLLRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRR

result:

ok Valid Solution (Length = 239).

Test #42:

score: 0
Accepted
time: 0ms
memory: 30108kb

input:

10 10
1110000101
1100110001
1011011001
0000000111
0010010111
0100111011
1110010011
1100111111
0110001110
0100000101
9 9 6 10

output:

-1

result:

ok No Solution.

Test #43:

score: 0
Accepted
time: 6ms
memory: 43604kb

input:

10 10
1110111011
1111111111
1110110000
1111111111
1010011100
1111111111
1111001110
1111111111
1001010011
1111111111
6 9 2 9

output:

DLUDRURRDRUUUUURRUUUURRRDDDDDDDDDLUUULDDDULLDUUURLDDRRUUUUUURDDUULDDDDRDDDRUUUUUUUUULLLLLDDRLLDDDDLUUUULDDLRUUUURRLLLDDUURDDRDDDDLLRRRUUUURUURRDDDDLLDDDDDLULLRUUURRURURRUUURLLULDDDDDLLDDDDRRUURUUUURRRLLDDDDRDDRUUDDLLLRRUUUURLDDLUUUULDDDDLLRDDLLLLLUUUUUUUUURDDDRDDDDLUUDDRUUUUUURRDDLRUUUDLLUDDDLUUULDD...

result:

ok Valid Solution (Length = 331).

Test #44:

score: 0
Accepted
time: 6ms
memory: 43328kb

input:

10 10
1111110011
1011111110
0111011111
1101101101
1111111110
1110111101
1011011111
1111111101
1011111101
1111111011
7 3 5 5

output:

DRDDDRUURUUURDDUUUUUULLDDDDDLRUULUUULDDLDDDLDDDRDRUDLUUDLLUUUUUUURDDDUUUURDULDLDDLLDUUUURLDDDRRDDLRDDLDDLRUULUDRRDRUUURURLUURUURDDDRURLUURRDDDDLDDDLDDRRUDLLLUUULURDLLDDLLDRULUUULLLDURRDDLDDDLDDDDRRUULRURDDDRUURUULRURUUURDRRDULUURLDDLDDRLDDRRDDDLRUUUUDLLDDLDLUDRUUUUDDDRUUUUUUULLDUULDURDRDDDLDDDLDDLUU...

result:

ok Valid Solution (Length = 334).

Test #45:

score: 0
Accepted
time: 0ms
memory: 30144kb

input:

10 10
1101011101
1110111011
0101110101
1111101011
1111111111
1010111010
0111111101
1111101011
0111111101
1011101111
3 8 2 2

output:

-1

result:

ok No Solution.

Test #46:

score: 0
Accepted
time: 11ms
memory: 61044kb

input:

20 12
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
16 8 13 12

output:

DDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDLUUUUUUUU...

result:

ok Valid Solution (Length = 973).

Test #47:

score: 0
Accepted
time: 17ms
memory: 63984kb

input:

20 17
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
111111...

output:

DDDDDLLUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDLRUULRUULRUULRUULRUULRUUUDLLLLDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDDDDDDDDDDDDDRLUURLUURLUURLUURLUURLUURLUURLUURLUUUDRRDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLD...

result:

ok Valid Solution (Length = 1045).

Test #48:

score: 0
Accepted
time: 11ms
memory: 58900kb

input:

20 19
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
11111111111111...

output:

RRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLL...

result:

ok Valid Solution (Length = 840).

Test #49:

score: 0
Accepted
time: 3ms
memory: 29504kb

input:

20 16
0101001111110001
0000111101001011
0000111100011001
1101110100110100
1011011110001101
1101000110111111
0111010111100101
1101101111011001
1101010100000101
1111001000110010
0001011000101000
0101111010110110
0001101111000111
1010100010000110
0100100011011100
0100100101011111
0001000001001110
10011...

output:

-1

result:

ok No Solution.

Test #50:

score: 0
Accepted
time: 32ms
memory: 66184kb

input:

20 18
100101011111011110
111111111111111111
101111101010000001
111111111111111111
110010011011001010
111111111111111111
110110111110000010
111111111111111111
100001000001111000
111111111111111111
100010100111111000
111111111111111111
111100011010110111
111111111111111111
111101010111011110
111111111...

output:

RRUURDDDDDRURDRURUURDDDURUUUUUURDDRRDDRDDDULLUULDDDUUURDDRRUUUUUUUUUUUUUUUUUULDDLDDDDDDRUUUUDDDDLLUUUUUUUURDULLLLDDRDDDDRLLLDDRDDRDDLDDRLLDDLDUUUUURDULLDDULULUUUURDDRUURUULUUUUUURRDDDDDURLLRUULRUULLLLDDRLLLLDDDDRDDDDDDRUUUUUURUURDDDUUULLLDURRDDLDDDDDDLLUUUULUUUUUULLDDRDDDDLUUDDRUUUULUURRDDDDDDRDDLLL...

result:

ok Valid Solution (Length = 1120).

Test #51:

score: 0
Accepted
time: 26ms
memory: 65928kb

input:

20 16
1110111111111111
1111111001111111
1111110111111011
1111110011111111
1111111111011111
1111110111101111
1111011111111111
1101111111111111
1011111111111001
0111111011111111
1110111111111111
1111111111111111
1111011011111111
0101110111111111
1110111101111110
1111111111111111
1111111111011111
11111...

output:

DDDDDDDDDRUUUUURDDDDRDRUUUUUUURDDDDDDDUUUUUUUUDLDLDDDDUUUULUUURDUUUURDDDURUUDDLUUUUUUUUURDDDDDUUUUULLDDDDDULUUUULDDDDDDRDDLDDDDUUULUUUUUUUUULDDDDDLDLDDDDDDDDDDDRLLDDRRRUDLLLLUUURUUUUUUUUUUUUUUUURDDDDRUUUUDDDDLUUUULLDDLDDDDDDDDDDDRDUUUUUUUUUUDDDDDDDDDLLDDDDDDRUUUUDDDDLLULDLUUUUUUUUUUUUURDDDDRUUUUUUUU...

result:

ok Valid Solution (Length = 1165).

Test #52:

score: 0
Accepted
time: 0ms
memory: 30140kb

input:

20 18
110111110101110101
101010111110101010
110101111101111101
111011111011101111
010111110111111101
111011111011111011
011111110111010111
101110101010111010
010111110101110111
101010101011101110
011101110111011111
101010111011111010
010101111111110101
101011101110111011
110101011101010101
101010101...

output:

-1

result:

ok No Solution.

Test #53:

score: 0
Accepted
time: 23ms
memory: 60800kb

input:

14 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

DDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUU...

result:

ok Valid Solution (Length = 1135).

Test #54:

score: 0
Accepted
time: 20ms
memory: 66368kb

input:

19 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

DDDDDDDDDRRUUUUUUUUUUUUUUUUUURRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUURRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUURRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUULRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLLLRUULRUULRUULRUULRUULRUULRUULRUULRUULLLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLLLRUULRUULRUULRUULRUULRUULRUULRUULRUUL...

result:

ok Valid Solution (Length = 1177).

Test #55:

score: 0
Accepted
time: 4ms
memory: 44960kb

input:

10 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
5 6 8 20

output:

DRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDURRRRRRR...

result:

ok Valid Solution (Length = 479).

Test #56:

score: 0
Accepted
time: 6ms
memory: 28336kb

input:

18 20
11011110100011011100
01100010001011110000
11100110001011101110
10110111100011001111
10100011111011110011
00001010110000010010
01101101100110010001
10001000111110000100
11000011001000001001
10101011101010100110
01111011011010100001
00010110000101101011
10110101011011000011
00110010111011000100
...

output:

-1

result:

ok No Solution.

Test #57:

score: 0
Accepted
time: 34ms
memory: 70996kb

input:

20 20
10101101000110011011
11111111111111111111
10110101010011101111
11111111111111111111
11010000010101011110
11111111111111111111
10100110101011011011
11111111111111111111
10010101101010101001
11111111111111111111
11101001101101101010
11111111111111111111
11100110110111110111
11111111111111111111
...

output:

DDDRUURUURDDRDDDDRUUUUUURDDDDDDDDDDDDDDDULLDUUURUULUURLLUULUURLDDLDDDDRRDDDDLDLUUURLLLDDDURLLLUUUURUUUUUUUUUUUURRDDRLLDDUURUURRRRDDUURRDUUULLLLLLLLLDDDDDDDDLDDDDDDLDDRLLDDDRURLDLULUUUUUURDDUUUURUUUUUURDDUULLDDDDLDDLDDLDDDDRDDLDLUUUUUUUUUUURUUUURDDDDDUURUUUUURDURUURLLLLDDDULUULLLDDDDDDDDDDRLLDDDDRDDD...

result:

ok Valid Solution (Length = 1292).

Test #58:

score: 0
Accepted
time: 40ms
memory: 68780kb

input:

18 20
11111111111110111111
01111111111011111111
01111111111110011111
11111111111101111111
11111011111110111111
11111111111110111110
11111111111111011111
11011111111111111110
11110111111111001111
10111111110110111111
11111011111111111111
11111111111011101111
11101111001111111111
11111111111111111111
...

output:

DDDDRDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUURDDDDDDRDDRDDDDDDDDDRUUUUUURDDDDDDRLUUURUUUUUUUUUUUUUULDDDDDDDLDDRDULUUUUUUULDDLDUUDRUURDDDDLDURDRUUUUUUULLLDURRRRDDDDDDDDDDDDDDLUUULDDDDDDLLUUUUUUULDDUUUUDDRDDDDLDDDUUURDDDRUUUUUUUUULUULUUUUUULLDDDUUURDDDDDDDDDDDDDDDDDLLUUUUUUUUUUULDDDDDDDDDDDLUUUUUUUULDDDDDDLDDR...

result:

ok Valid Solution (Length = 1315).

Test #59:

score: 0
Accepted
time: 0ms
memory: 29668kb

input:

13 20
11011101111111110111
11111110111010111111
11111111111101011101
10111010101111111010
01011101111111010111
10101011101110101110
01111101010101011111
11111011111110101011
11110111111111011111
11111010101011101011
01111111110101011111
10111010101011111110
11111111110111011101
12 16 1 20

output:

-1

result:

ok No Solution.

Test #60:

score: 0
Accepted
time: 44ms
memory: 79460kb

input:

20 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

DDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 1635).

Test #61:

score: 0
Accepted
time: 28ms
memory: 68956kb

input:

20 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

DDRRUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDLRUULRUULRUULRUULRUULRUULRUULRUULRUUUDLLLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLLLRUULRUULRUULRUULRUULRUULRUULRUULRUUUDLLLRDDLRDDLRDD...

result:

ok Valid Solution (Length = 1215).

Test #62:

score: 0
Accepted
time: 8ms
memory: 60200kb

input:

20 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
...

output:

RDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLL...

result:

ok Valid Solution (Length = 979).

Test #63:

score: 0
Accepted
time: 3ms
memory: 29616kb

input:

20 20
11110100001010101100
10110001101110101000
01011110111010110000
10111001001011011100
00110111011000010101
01001111110001010010
00101001010111010111
10110100100010001000
10101010001110000010
01111111010110101011
00100101001111000101
00110001001001111000
10101110010001000010
00000100010000110000
...

output:

-1

result:

ok No Solution.

Test #64:

score: 0
Accepted
time: 35ms
memory: 71708kb

input:

20 20
11010001010100101010
11111111111111111111
11000010111011001011
11111111111111111111
10010100111100111110
11111111111111111111
11101100001110000111
11111111111111111111
11010100111101000011
11111111111111111111
11010011111100110100
11111111111111111111
10001011110000111010
11111111111111111111
...

output:

DDDDRDDDDRDDDDRDDRUUUUUURDDDDDDDDDDDLUUULLUULUULDDDDRLLDDRRRDURLLLLLDULUUUURRLLLDDDDDULUUUUUUUUUURDDDDRUUUUUUUURRLLLUURUURDDRLUURLLLLLLLLDDDDRDDRRRRDULLLLLDDDDRDDRDDRDDLDDRDULLUULUURLLDDLDDDURRDULLLLDUUUUUUUUURUURUURDDDDLRUUUULLLDDLRUULRRRDDLDDLLDDDDUUUURDDRDDDDURUDLUUURRRLLLLDDDDLDDUURDDRRUURUURDDR...

result:

ok Valid Solution (Length = 1217).

Test #65:

score: 0
Accepted
time: 44ms
memory: 74272kb

input:

20 20
11111111111101111111
11111111111111111101
11111110111110111111
11111011110111111111
11010010110111111011
11111111111111101111
11111111111111111111
11111111111111111001
11111111011110111111
11111111111111111101
11101011111111111111
11111110111111101111
11111111111111111101
10111111111111100111
...

output:

DDDDDLUUUUUUUUUUUURDDDDDDUUUUUUUUUUUULDDDLDDDDDDDDDDLDDDDDRUUUDDDLLUUUDLDDLUUUUUUUUUUUUUUURRDDDDDDDDDDLUUUUDDDDRURUUUDDDLUUUUURUUUUUUUURDDDUUURLLLLDDRDULLUULDDDDDDDLDDDRDDDDLDDDDDRUDLLUUUUUUUUUUUUUULDDDDDDDDDLDDDDDRUUDDLULUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDUUUUUUUUURUUUURRDDDLUDRUUULLDDDDLUUUULLDDDDDDD...

result:

ok Valid Solution (Length = 1468).

Test #66:

score: 0
Accepted
time: 3ms
memory: 28564kb

input:

20 20
11010111110101010101
10111010101111101010
11111101111101110111
10101011111010101110
11111111110101111101
10111111111010101111
11110101010111111101
10111110101011101111
01110111011101111101
10111011101010111010
11010111011111010111
11111011101011101111
01010111011111011111
11111010111110111011
...

output:

-1

result:

ok No Solution.

Test #67:

score: 0
Accepted
time: 206ms
memory: 155776kb

input:

30 25
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
11111111...

output:

DDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDLDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDUULLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 3039).

Test #68:

score: 0
Accepted
time: 137ms
memory: 123212kb

input:

30 25
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
10101010...

output:

DDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDLRUULRUULRUULRUULRUULRUULRUUUDLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRLLLDDDDDDD...

result:

ok Valid Solution (Length = 2291).

Test #69:

score: 0
Accepted
time: 47ms
memory: 88712kb

input:

30 25
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
00000000...

output:

RRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 1854).

Test #70:

score: 0
Accepted
time: 0ms
memory: 29432kb

input:

30 30
011110110001111010011111110010
011101110110100110001101010100
100100100111010000000011100101
111110001011110110101000100000
100110011100000111100111100010
110011101000111000101110011101
011000001101110100001010011100
001101101010010100111111110011
100010111001110111010110100001
000101010010110...

output:

-1

result:

ok No Solution.

Test #71:

score: 0
Accepted
time: 205ms
memory: 148080kb

input:

30 30
101011111010110011011100010111
111111111111111111111111111111
101000010010011000101010010010
111111111111111111111111111111
101010011110010001011010010101
111111111111111111111111111111
111100010110101001000001000001
111111111111111111111111111111
111101000101101001001000100001
111111111111111...

output:

DDDDDDDDDDDDDDDDDDDDDDDULLDUUUUUUUUUUUUURLLDDDDDDDDLDDRLLLLDDDRURDRURLDLULDLLULLDUUUUUUURDDDDRUURDUUURRUURUULLUURRLLLDDDDRLLUULDDDULLDDLDDRLLDDDDDRURLDLULUULLLUUUUUUUURRUURDDDDDDDDLLRRUURLLLRRUURRDUUURDURLLLRDDLLLLRRUUUUUURRDDRRUURUURRDDDURRUUUURDDDDRUURRLLDDRRLLLUUUUUURDDRRLLUUUUUURDDRDDLRUULUUUUUU...

result:

ok Valid Solution (Length = 2741).

Test #72:

score: 0
Accepted
time: 236ms
memory: 185288kb

input:

30 30
111111111111111101111111011011
111111100111011111111111101010
111111111111111111111111011111
111111111101111111110111111110
111111111111111011111111111111
111110111111111111111111011111
111111111111111111111111111011
111101111111011111111111111111
111111111111111111111111111111
101110111110111...

output:

DDDLDDRLUUUUUUUUUUUUUUUUUURDDDDDDRDDDDDDRDDDDDDRUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDRUURDDRUUUUUUUUUUUUUURDDDDRDDDDDDDDDRDRUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUURDDDDRDDDDRRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDRDDDDDDDDDDDDDDRDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDRDDDDDDDD...

result:

ok Valid Solution (Length = 3388).

Test #73:

score: 0
Accepted
time: 3ms
memory: 28876kb

input:

30 30
110111011111110111011111110101
101110101010111010101011101010
011101111101011101011111010111
111110101110111111111011101110
010101110101011101010101111111
101111101011111111111110101011
111101110111010101011101010101
111011111010101010101010101111
011111011111110101011111111101
111010101111101...

output:

-1

result:

ok No Solution.

Test #74:

score: 0
Accepted
time: 129ms
memory: 124624kb

input:

21 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULLDDDDDDLDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUURDDDDDUUUUULLDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUL...

result:

ok Valid Solution (Length = 2543).

Test #75:

score: 0
Accepted
time: 79ms
memory: 100184kb

input:

21 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

RDDDDDDRRUUUUUUUUUUUUUUUUUUUURRDDDDDDDDDDDDDDDDDDDDLRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULLLLDDDDDDDDDDDDDURLLLDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUURRDDDDDDDDDDDURLLRUURLLRUURLLRUURLLRUURLLRUURLLLLLDDDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUURLLLDDDDDDDDDDDDDDDDDDDDRLLLUUUUUUUUUUUUUUUUUUUURLLLDDDDDDDDD...

result:

ok Valid Solution (Length = 1943).

Test #76:

score: 0
Accepted
time: 31ms
memory: 75812kb

input:

21 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

RUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 1445).

Test #77:

score: 0
Accepted
time: 0ms
memory: 28492kb

input:

25 30
011010010110010101001110110111
000011111001111101110011010001
011011100010011000110100110000
001111001100100010111111101001
000101111100111001000000001111
001010110011101110101000010000
001010011001010000011001001001
011111010111110110101001110000
011001010011100010100101011000
100011000011110...

output:

-1

result:

ok No Solution.

Test #78:

score: 0
Accepted
time: 130ms
memory: 118244kb

input:

25 30
101100000100000111111100110011
111111111111111111111111111111
100111110101001111010001110011
111111111111111111111111111111
101101100110111111011110101110
111111111111111111111111111111
111001000110101100010101000110
111111111111111111111111111111
100000001011110010001101011010
111111111111111...

output:

UUUUUUUUUUUUUUUUUUURRDDRDDRRRDDRUUUUUUUURUUULDLULDDDDDDDRLLUULDURDDRUURLUURLLUUUDLDDLUULDDLLRRUULLRRRDDRUURDDRUUURDRURDRDDRRDDRUUUUURDRDDRUUURDRURDDDRRUURRUDRRDDDDRDDRUURUUUUURDDDDDDDDDDDDDDDDDDDDDDDDULLDLUUUUURDDRLUUUURDDUULLLLDDDDDDRUUDDLLUUUULLLDDDDDURRUULRDDLLLLUURUUUUUUUURDDRDDRRLLLDURUURRRUURU...

result:

ok Valid Solution (Length = 2244).

Test #79:

score: 0
Accepted
time: 188ms
memory: 143928kb

input:

25 30
111111101111111111111111111111
111111111111111101111111110111
111111111111101111111111111111
111111111111111101101111111111
011101111111111111111111101111
111011100111111110111110111111
111111110111111111111111111111
111111111111110111111111111111
111111111111111101111111111111
111111111111111...

output:

URDDDDDDDDDDDDDDDDDDDDDRUUURDDDRUUUUUUUUUUUUUURDDDDDDDDDDDDDDRUUUDDDLUUUUURUUUUUUUUUUUUUUUUUUULDDDLDDRDDDDULULDDDDDDDDDDDLDUUUUUUUUUUUUUUUUUUURDDDDDDUUUUURUDLULLDDULULDDDDDDDDDDRDDDDDDDDDDDDDDULUUULDDDDLUUUUUUUUUUURDDDDRDUUUUUULUUUUUUUULDDDDDDDLDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDLULDDDD...

result:

ok Valid Solution (Length = 2841).

Test #80:

score: 0
Accepted
time: 0ms
memory: 28508kb

input:

25 30
110101110101011111010101010111
101111101011111011111110101010
110111011101110111111101011101
101011111011101011111111111011
110111111101011111110111111111
111111111110101011111111101010
110101010101010101011111011101
101010111010101111111111101111
111101110111011101011111010111
101010101010111...

output:

-1

result:

ok No Solution.

Test #81:

score: 0
Accepted
time: 301ms
memory: 199132kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 3643).

Test #82:

score: 0
Accepted
time: 188ms
memory: 150624kb

input:

30 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

DDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDRRDDDDDDDD...

result:

ok Valid Solution (Length = 2715).

Test #83:

score: 0
Accepted
time: 68ms
memory: 101668kb

input:

30 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 2319).

Test #84:

score: 0
Accepted
time: 7ms
memory: 29772kb

input:

30 30
010110110101101010000010000110
101110000111000001001111100101
010100011111100110100001111101
101101100010111011011010001010
100101010100001011101100101100
101001111001111101101100001110
000111101010011110100001110100
111111001101000001011110000111
010000100010000100000011101000
100001010111010...

output:

-1

result:

ok No Solution.

Test #85:

score: 0
Accepted
time: 187ms
memory: 148528kb

input:

30 30
100110101011111011001000111100
111111111111111111111111111111
101001000111011110000110011110
111111111111111111111111111111
111001111110100011111000000010
111111111111111111111111111111
100111001001100000100010001101
111111111111111111111111111111
110001101000111011111010110110
111111111111111...

output:

DDRDDRRRDDRDDRUURRDDDDDDDDRDDDDDDRDDDDRUURDDDDDLULLLDULUURUURDDUULLLUUUUUUUUUUUURUUDDLLDDDDLLDDRDDDDRLLUULUUUULDDDDDDDDRUUDDRRRLLLLLDDDDRDRUUURDDDRURRUULLRRDDLLDLUUULLDURDDDLULLRUULRUULUURUULUURUULUUUURUURDDDDRUURDDDURLUURLLDDLLRUUUURRRLLLLLRDDLDDDDRDDLDDRDDLDDRRUUUUUUUURDDDDRDDRUURLUURLLUURRUUUURDD...

result:

ok Valid Solution (Length = 2752).

Test #86:

score: 0
Accepted
time: 257ms
memory: 184820kb

input:

30 30
111101111111111111111011111111
100111111111111111111111011111
111111011111111111011111111110
101111111101111111111111111111
111111111111111111111111111111
111111101111011111111110111111
111011111111111111111111111111
111111111111111111111101111111
111111111111111111111111111111
011111100111111...

output:

DDDDDDDDDRRDDLLLUUUUULDDDDLDLULDLUUUUUUUURDDRDDDRDUUUUUUUUUUUURDDDDDDDDURUUUUUUUUUUUUUURDDDDDDDDDRDDDDDDDDRDUUUUUDDDDLUUUUUURUUUUULDDUUUUUUUUUUUUUURDDDDDDDDDDUUUUUUUUUUUULLDDDDDDDULUUUUUULDDDDDDLUUUUUULDLDDDDDDDRDDDDDDDDDDDDDDUUULUUUUDLDDDLDDDDDDDDDDLUULDDLUUUURDUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 3388).

Test #87:

score: 0
Accepted
time: 0ms
memory: 28828kb

input:

30 30
011111010101111111011101111101
111011101011111110111111101011
111111010101011101111101110101
111110101011101110111111101110
010111011101110101110101111101
101111101011101110101010111111
110101010101010111011101010101
101110101111101110101110111111
110111011101010111010111110101
101011111110111...

output:

-1

result:

ok No Solution.

Test #88:

score: 0
Accepted
time: 288ms
memory: 198972kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DLUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUU...

result:

ok Valid Solution (Length = 3653).

Extra Test:

score: 0
Extra Test Passed
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服务器时间: 2024-12-05 05:53:03 | 开源项目