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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
#773111#7751. Palindrome PathCrysflyAC ✓14ms31464kbC++143.2kb2024-11-23 01:03:572024-11-23 01:03:58

Judging History

你现在查看的是最新测评结果

  • [2024-11-23 01:03:58]
  • 评测
  • 测评结果:AC
  • 用时:14ms
  • 内存:31464kb
  • [2024-11-23 01:03:57]
  • 提交

answer

// what is matter? never mind. 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,sse4,popcnt,abm,mmx,avx,avx2")
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
#define ll long long
//#define ll __int128
//#define ull unsigned long long
#define SZ(x) ((int)((x).size()))
#define ALL(x) (x).begin(),(x).end()
using namespace std;
inline int read()
{
	char c=getchar();int x=0;bool f=0;
	for(;!isdigit(c);c=getchar())f^=!(c^45);
	for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
	return f?-x:x;
}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 500005
#define inf 0x3f3f3f3f

int n,m,sx,sy,tx,ty;
int a[33][33];

int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};
string opt="DRUL";

bool vs[33][33];

string res;

void mov(int d){
	res+=opt[d];
	if(a[sx+dx[d]][sy+dy[d]]) sx+=dx[d],sy+=dy[d];
}
void dfs(int x,int y){
	vs[x][y]=1;
	For(d,0,3){
		int xx=x+dx[d],yy=y+dy[d];
		if(a[xx][yy] && !vs[xx][yy]) {
			mov(d^2);
			dfs(xx,yy);
			mov(d);
		}
	}
}

mt19937_64 rnd(64);

int dis[33][33][33][33];
array<int,4> pre[33][33][33][33];
int pres[33][33][33][33];
vector<pii>get(int i,int j,int d){
	vector<pii>res;
	if(!a[i+dx[d]][j+dy[d]]) res.pb({i,j});
	if(a[i-dx[d]][j-dy[d]]) res.pb({i-dx[d],j-dy[d]});
	return res;
}

void out(int x1,int y1,int x2,int y2) {
	vi qwq;
	while(dis[x1][y1][x2][y2]!=0){
	//	cout<<x1<<" "<<y1<<" "<<x2<<" "<<y2<<"\n";
		int d=pres[x1][y1][x2][y2];
		qwq.pb(d);
		auto [xx1,yy1,xx2,yy2]=pre[x1][y1][x2][y2];
		x1=xx1,y1=yy1,x2=xx2,y2=yy2;
	}
	reverse(qwq.begin(),qwq.end());
	for(auto it:qwq) mov(it);
	
		string rev=res;
		reverse(rev.begin(),rev.end());
		cout<<res+rev<<"\n";
		exit(0);
}

void work()
{
	n=read(),m=read();
	For(i,1,n){
		string s;cin>>s;
		For(j,1,m)a[i][j]=(s[j-1]&1);
	}
	sx=read(),sy=read(),tx=read(),ty=read();
	dfs(tx,ty);
	
	For(i,1,n)For(j,1,m){
		if(a[i][j] && !vs[i][j]){
			puts("-1");
			exit(0);
		}
	}
	memset(dis,-1,sizeof dis);
	dis[sx][sy][tx][ty]=0;
	pres[sx][sy][tx][ty]=-1;
	queue<array<int,4>>q;
	q.push({sx,sy,tx,ty});
	while(q.size()) {
		auto [x1,y1,x2,y2]=q.front(); q.pop();
		//cout<<"bfs "<<x1<<" "<<y1<<" "<<x2<<" "<<y2<<"\n";
		if(x1==x2 && y1==y2){
			out(x1,y1,x2,y2);
		}
		For(d,0,3){
			int nx1=x1,ny1=y1;
			if(a[nx1+dx[d]][ny1+dy[d]]) nx1+=dx[d],ny1+=dy[d];
			vector<pii>o2=get(x2,y2,d);
			for(auto [nx2,ny2]:o2){
				if(dis[nx1][ny1][nx2][ny2]==-1){
					dis[nx1][ny1][nx2][ny2]=dis[x1][y1][x2][y2]+1;
					pre[nx1][ny1][nx2][ny2]={x1,y1,x2,y2};
					pres[nx1][ny1][nx2][ny2]=d;
					q.push({nx1,ny1,nx2,ny2});
				}
			}
		}
	}
	puts("-1");
}
/*

*/
signed main()
{
//	freopen("my.out","w",stdout);
	int T=1;
	while(T--)work();
    return 0;
}
/*
9 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
1 1 9 30
*/

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 12012kb

input:

2 2
11
11
1 1 2 2

output:

DRUDLUDRRDULDURD

result:

ok Valid Solution (Length = 16).

Test #2:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 0ms
memory: 10420kb

input:

1 1
1
1 1 1 1

output:



result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 0ms
memory: 13804kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

ULLDDDDRUUUDRDDRUUUUDDDDLUULDDLUUUURRDDRLLLLRDDRRUUUULDDLUULDDDDUUUURDDRDUUURDDDDLLU

result:

ok Valid Solution (Length = 84).

Test #5:

score: 0
Accepted
time: 0ms
memory: 15040kb

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

DDDDRRUUUULRRRDDLRDDLRUUUULLDDLRDDLLUUUUDDRRRRDDUUUULLDDRLDDLLUUUURLDDRLDDRRRLUUUURRDDDD

result:

ok Valid Solution (Length = 88).

Test #6:

score: 0
Accepted
time: 1ms
memory: 9756kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

LUURRLLDDRRDDLLRRUULLUURRLLDDRRDDLLRRUUL

result:

ok Valid Solution (Length = 40).

Test #7:

score: 0
Accepted
time: 3ms
memory: 13760kb

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UULLUUDLDDDUUURDRDURDDULLUDDRUDRDRUUUDDDLDUULLUU

result:

ok Valid Solution (Length = 48).

Test #8:

score: 0
Accepted
time: 0ms
memory: 11572kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

LDURRUUUDLLRRDDDULRUULLUURLUDDDRRLLDUUURRUDL

result:

ok Valid Solution (Length = 44).

Test #9:

score: 0
Accepted
time: 2ms
memory: 14628kb

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

LLRDDLLULRDDDRUDRLLUURRRUDDULUURDDLLLLDDRUULUDDURRRUULLRDURDDDRLULLDDRLL

result:

ok Valid Solution (Length = 72).

Test #10:

score: 0
Accepted
time: 0ms
memory: 11416kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UULULDURDDDLDRLURUURDDULUULUDDRUURULRDLDDDRUDLULUU

result:

ok Valid Solution (Length = 50).

Test #11:

score: 0
Accepted
time: 2ms
memory: 14336kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

UUULLDDDRUUDDLUUURRRDDDRUUUDDDLUUULDDDUUUUDDDLUUULDDDUUURDDDRRRUUULDDUURDDDLLUUU

result:

ok Valid Solution (Length = 80).

Test #12:

score: 0
Accepted
time: 0ms
memory: 13628kb

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

UUUULLLLDDDDRRUUUDLRRLDDRLLLUUUURRRRDDDDUULLLLUUDDDDRRRRUUUULLLRDDLRRLDUUURRDDDDLLLLUUUU

result:

ok Valid Solution (Length = 88).

Test #13:

score: 0
Accepted
time: 0ms
memory: 14944kb

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: 0ms
memory: 3608kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

score: 0
Accepted
time: 2ms
memory: 14124kb

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

ULLLLRRDDLLDURRRUDRDULLUURRDUDDDDUDRRUULLUDRDURRRUDLLDDRRLLLLU

result:

ok Valid Solution (Length = 62).

Test #16:

score: 0
Accepted
time: 0ms
memory: 12664kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

RRDDLLRRRRUULRDDLLUULLRRDDRRLLUULLDDRLUURRRRLLDDRR

result:

ok Valid Solution (Length = 50).

Test #17:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

4 5
01110
10101
11011
10111
1 3 2 3

output:

-1

result:

ok No Solution.

Test #18:

score: 0
Accepted
time: 0ms
memory: 14652kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

LLLDDDDRUUURDDDRUUURUDDDDUUULDDDLUUULDDDLUUUURRRDDLLDDRRRUUUULDDDLUUULDDDLUUUDDDDURUUURDDDRUUURDDDDLLL

result:

ok Valid Solution (Length = 102).

Test #19:

score: 0
Accepted
time: 2ms
memory: 12732kb

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

UUULLDDDDRRRRUUUULRDDLRDDLLLLUURLUURRDDDUUDDDRRUULRUULLLLDDRLDDRLUUUURRRRDDDDLLUUU

result:

ok Valid Solution (Length = 82).

Test #20:

score: 0
Accepted
time: 0ms
memory: 12176kb

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

LLDDRRRRDDLLLLRRRRUULLLLUURRRRLLLLDDRRRRDDLLLLRRRRUULLLLUURRRRLLLLDDRRRRDDLL

result:

ok Valid Solution (Length = 76).

Test #21:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

5 5
01010
10101
10101
11001
10011
4 1 5 4

output:

-1

result:

ok No Solution.

Test #22:

score: 0
Accepted
time: 2ms
memory: 11492kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

LUUURDRURDRUDDDLLUDDURRDUUULULDLULDDDDURRUURRUDDDDLULDLULUUUDRRUDDULLDDDURDRURDRUUUL

result:

ok Valid Solution (Length = 84).

Test #23:

score: 0
Accepted
time: 0ms
memory: 14112kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

LLLDRDDLDURRUURDDRLUULDDLUULURRRDDLLDDRRRULUULDDLUULRDDRUURRUDLDDRDLLL

result:

ok Valid Solution (Length = 70).

Test #24:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 0ms
memory: 16888kb

input:

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

output:

UUUUUUULLDDDDDDDDDRUUUUUUUUDDDDDDDRDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUUDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLULDLUUUUUUUUURRDDDDDDDDDUUUUULLRRRRRRRRLLUUUUUDDDDDDDDDRRUUUUUUUUULDLULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUU...

result:

ok Valid Solution (Length = 342).

Test #26:

score: 0
Accepted
time: 0ms
memory: 10676kb

input:

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

output:

UUUUUUUUDLLUDLRDDLRDDLRDDLRDDLRRRRRUUUUUUUUUDLRDDLRDDLRDDLRDDLLLLUURLUURLUURLUURRDDDDDDDLDUUDLDDDDDDDRRUULRUULRUULRUULLLLDDRLDDRLDDRLDDRLDUUUUUUUUURRRRRLDDRLDDRLDDRLDDRLDULLDUUUUUUUU

result:

ok Valid Solution (Length = 182).

Test #27:

score: 0
Accepted
time: 2ms
memory: 14084kb

input:

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

output:

LLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLRLLLLLLLLLLRLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLL

result:

ok Valid Solution (Length = 228).

Test #28:

score: 0
Accepted
time: 0ms
memory: 3568kb

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: 0ms
memory: 13612kb

input:

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

output:

UUULLLRRDDLLRDDLDDDDRRDURRRUUUUUUUULDDUURDDDDLLLDLDRRUDRLLLURURRRDDDDDULLLLLUUUURUURUURDDDLDLLDLDDDRUURUURUUUULLLLLUDDDDDRRRURULLLRDURRDLDLLLDDDDRUUDDLUUUUUUUURRRUDRRDDDDLDDRLLDDRRLLLUUU

result:

ok Valid Solution (Length = 186).

Test #30:

score: 0
Accepted
time: 0ms
memory: 17648kb

input:

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

output:

LUUUUUUUULLLLLDLDDDDDDDRURUUULUDRRUUULDURDRDDDLDDRURDDLDLLUDLRRRRRRLLLURUULDLUURURUDLUULDDLDDDLDLUUUUUUURURRRRRRDDDDDDUUUUUULDDDDDDDDRLUULLLLUULRDDDDDDDDLUUUUUUDDDDDDRRRRRRURUUUUUUULDLDDDLDDLUULDURURUULDLUURULLLRRRRRRLDULLDLDDRURDDLDDDRDRUDLUUURRDULUUURURDDDDDDDLDLLLLLUUUUUUUUL

result:

ok Valid Solution (Length = 278).

Test #31:

score: 0
Accepted
time: 0ms
memory: 3624kb

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: 0ms
memory: 17176kb

input:

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

output:

UURDDDLDDDDRUUURUUUURDDDDDLDDRURUUUUUURDDDDDDDLRRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDLDLUURUUUUULDDDDLDDDLUUUURUUULDDRRRRRUUDDDDDDDDUURRRRRDDLUUURUUUULDDDLDDDDLUUUUURUULDLDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUUDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURRLDDDDDDDR...

result:

ok Valid Solution (Length = 338).

Test #33:

score: 0
Accepted
time: 0ms
memory: 16940kb

input:

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

output:

UDLLUDLLUDLLUDLLUDLRDDLRDDLRDDLRDDLRRRUUUUUUUDLRRRUDDDLRDDLRDDLRRRUUUUUUUDLRRRUDDDLRDDLRDDLRUUUUUULLDDLRDDLRDDLLUUUUUULLDDLRDDLRDDLLUUUUUUUURRRRRRRRLDDLLLLDDLLLLDDLRRRRRRRRUUUUUUUULLDDRLDDRLDDLLUUUUUULLDDRLDDRLDDLLUUUUUURLDDRLDDRLDDDURRRLDUUUUUUURRRLDDRLDDRLDDDURRRLDUUUUUUURRRLDDRLDDRLDDRLDDRLDULLDU...

result:

ok Valid Solution (Length = 312).

Test #34:

score: 0
Accepted
time: 2ms
memory: 11360kb

input:

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

output:

LLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULRLLLLLLLLLLRLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLL

result:

ok Valid Solution (Length = 228).

Test #35:

score: 0
Accepted
time: 0ms
memory: 3628kb

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: 13536kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

LLUDLDDDURRDRUURUURDRUDRRURDDDLLLLLDURRDURRRDUUUULDLLLULDDLDDLULLUURRRDRDRRRRDRDRRRUULLULDDLDDLULLLDLUUUUDRRRUDRRUDLLLLLDDDRURRDURDRUURUURDRRUDDDLDULL

result:

ok Valid Solution (Length = 150).

Test #37:

score: 0
Accepted
time: 0ms
memory: 3800kb

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: 3ms
memory: 16800kb

input:

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

output:

UURDURRDDLDLLDDDDDURUURUDDDDRUUURUUUUUDRDDDDDLDDURRUUUUUUUDRRURDDLRDDLLUDDRDDLRDURLUURLLURRUUUULDLLDDDDDDDULLURUUUUULDDLRDDLDDDLUUULDDLUUUURRURUULLLDDDRRDDRRDDDLLLUURURRUUUULDDLUUULDDDLDDRLDDLUUUUURULLUDDDDDDDLLDLUUUURRULLRUULRUDRLDDRDDULLDDRLDDRURRDUUUUUUURRUDDLDDDDDRDUUUUURUUURDDDDURUURUDDDDDLLDLD...

result:

ok Valid Solution (Length = 308).

Test #39:

score: 0
Accepted
time: 0ms
memory: 20224kb

input:

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

output:

UUUUUUULLLLLLLLDDDDDDDDDRUUUUUUUURDDDDDDDDRUUUUUUUURDDDDDDDDRUUUUUUUURDDDDDDDDRUUUUUUUUDDDDDDDRDRUUUUUUUUUDDDDDDDDDLULDLUUUUUUUULDDDDDDDDLUUUUUUUULDDDDDDDDLUUUUUUUULDDDDDDDDLUUUUUUUUURRRRRRRRDDDDDDDDDRUUUUULLLLLLLLLLUUUUURDDDDDDDDDRRRRRRRRUUUUUUUUULDDDDDDDDLUUUUUUUULDDDDDDDDLUUUUUUUULDDDDDDDDLUUUUUU...

result:

ok Valid Solution (Length = 422).

Test #40:

score: 0
Accepted
time: 0ms
memory: 15588kb

input:

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

output:

UUUUUUUUUDLLUDLLUDLLUDLRDDLRDDLRDDLRDDLRRRUUUUUUUDLRRRUDDDLRDDLRDDLRRLUURLUURLUURLLLDDLRDDLRDDLLUUUUUUUURRRRRRRRUDDDLRDDLRDDLRDDLRUUUUUUUULLDDDDDDDDUUUUURRUUUUUDDDDDDDDLLUUUUUUUURLDDRLDDRLDDRLDDDURRRRRRRRUUUUUUUULLDDRLDDRLDDLLLRUULRUULRUULRRLDDRLDDRLDDDURRRLDUUUUUUURRRLDDRLDDRLDDRLDDRLDULLDULLDULLDU...

result:

ok Valid Solution (Length = 308).

Test #41:

score: 0
Accepted
time: 0ms
memory: 15464kb

input:

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

output:

LLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLL

result:

ok Valid Solution (Length = 240).

Test #42:

score: 0
Accepted
time: 0ms
memory: 3668kb

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: 0ms
memory: 18356kb

input:

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

output:

LDRLURRRDRUUUUULUULLUULDDUURRRRDDRRUULRRRRDDLLDLDLRRDDLLDDDURRURURUUULDURDDDDDLDLRRLURUULDLDLLUURRUULURURRUULLLDDLLUULLLDDDDLRRUDDDLLRRRUDLUULUURRDDRDDDDDLULLRRRUUUURRUUUURRRLLULDDDDDRDDRRUULUULDURRRLLDDDURRLDDDDLLLUULLDDLLLUURRURULUURRUULLDLDLUURULRRLDLDDDDDRUDLUUURURURRUDDDLLDDRRLDLDLLDDRRRRLUURRD...

result:

ok Valid Solution (Length = 332).

Test #44:

score: 0
Accepted
time: 0ms
memory: 13752kb

input:

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

output:

ULUUUULDLDDLLUUURLDDDDURRDDLRDDLLUDRDDLRURRUUUUUUDDDRLDDRDDRURUUURUUUUULLDDRUDDULUURRRRDDLRDDLDDDLDDLRRRUDLLUURURUDLUURUUUULLDDDDDLDLRDDLDLUULDLLURUUUUUURURDDDDRDDUUDDRDDDDRURUUUUUURULLDLUULDLDDRLDLDDDDDLLUUUURUULDURURUULLDURRRLDDLDDDLDDRLDDRRRRUULUDDURDDLLUUUUURUUURURDDRDDLRDDDUUUUUURRURLDDRDULLDDR...

result:

ok Valid Solution (Length = 328).

Test #45:

score: 0
Accepted
time: 0ms
memory: 3640kb

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: 0ms
memory: 26780kb

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:

UUUUUUURDDDDDDDDLDDDDDDDDDDDRUUUUUUUUUURUUUUUUUUURDDDDDDDDDDLDDDDDDDDDRUUUUUUUURUUUUUUUUUUURDDDDDDDDDDDDLDDDDDDDRUUUUUURUUUUUUUUUUUUURDDDDDDDDDDDDDDLDDDDDRUUUURUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDLDDDRUURUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDLDRLURUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDLDDLUUURUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 1002).

Test #47:

score: 0
Accepted
time: 0ms
memory: 21416kb

input:

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

output:

UUUUUUUUUUUUUUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRRD...

result:

ok Valid Solution (Length = 1050).

Test #48:

score: 0
Accepted
time: 0ms
memory: 11604kb

input:

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

output:

LLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 800).

Test #49:

score: 0
Accepted
time: 0ms
memory: 3628kb

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: 0ms
memory: 19416kb

input:

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

output:

LUULLUULRRRUUUULUUUUUULLDDRDDLDDRUDLUURUULUURRRUULLLRRRRRRDDLLRRRRUULRRRDDLRDDLLUDLLLLLUDDDRUDDDDDDDRUUUUUURURDDDLDDDDRDDLLLRRDDLRRUDDDLLLLLLLUURUDRLLDDRDRRRLLLURRRRRDRRURUUUUUULDDUURRDDDDRDDLDLRURRUURUUUULUULUULUUUDLLUDRDDLDLDRRRLLLURURUURRRUUUULUURRRDDLRDDLRDDLRDDLLRDDRRRRUUUUUUUUUULLDDDDDDDDRUUUU...

result:

ok Valid Solution (Length = 1136).

Test #51:

score: 0
Accepted
time: 0ms
memory: 22976kb

input:

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

output:

UUUUUUUUUULLLLLLLLLDLDDDRUURUDDDDLDLDDDDDDDDDDDDDRUUUUUUURDDDDRUUUUUUUUUUUUUURDDDDDDDDDDDRUUUUUUUUURUUULDURRDDDRUUURDDDDLDLLUDDDDDDDDDLRDDLLUDDLDLDRRURURDDLRRRRURUUUUUUULUUUUDLLUDDDDDDDDDDRLUURUUUUDRDULDDDRLLUUUUUURLURRDDDRRUUURUULUUUUUURDDDDRUUUURDDDDDLRDDLDDDLDDLRDDLDDDDDLRURUUURUURURUDDDLDDLDDDRU...

result:

ok Valid Solution (Length = 1170).

Test #52:

score: 0
Accepted
time: 0ms
memory: 3836kb

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: 0ms
memory: 22680kb

input:

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

output:

LLLLLLLDDDDDDDDDDDDDRUUUUUUUUUUUURDDDDDDDDDDDDRUUUUUUUUUUUURDDDDDDDDDDDDRUUUUUUUUUUUURDDDDDDDDDDDDRUUUUUUUUUUUURURDDLDDDDDDDDDDDRUUUUUUUUUURUUURDDDDLDDDDDDDDDRUUUUUUUURUUUUURDDDDDDLDDDDDDDRUUUUUURUUUUUUURDDDDDDDDLDDDDDRUUUURUUUUUUUUURDDDDDDDDDDLDDDRUURUUUUUUUUUUURDDDDDDDDDDDDLDRLURUUUUUUUUUUUULDDDDD...

result:

ok Valid Solution (Length = 1164).

Test #54:

score: 0
Accepted
time: 0ms
memory: 18484kb

input:

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

output:

UUUUUUUUULLLLLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUDLRRLDDLRRLDDLRRLDDLRRLDDLRRRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUULRRRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUULRRRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUULRRRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUU...

result:

ok Valid Solution (Length = 1178).

Test #55:

score: 0
Accepted
time: 0ms
memory: 12316kb

input:

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

output:

URRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRRRDULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRR...

result:

ok Valid Solution (Length = 438).

Test #56:

score: 0
Accepted
time: 0ms
memory: 3576kb

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: 0ms
memory: 20152kb

input:

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

output:

UUULLLUULLLLLLLLLLDDDDDDDDRUUUUUUUDRDDDDDDRDDLLUDLDDDDRUURRUDDDLDLDLDDDRUURURURUUURUUUUUUUUUUULDLDDDDRUUDDDDUULUUUURURDRDDDDDDDDRDDLDDLRDDLLRDDLLUDLRDRLURRRURURUULUDRRUUUUUULUUUULUURUDRLLDDDDDDUUUURRDDRUUURDDDDLDRDDLRDDLRDDLDDLRDDLLLDRLURRRRRUULRRRDDLRDRURUUUULLUUUULLUURUULUUDDRRDDRDDRDDLRRDDRDDLDDD...

result:

ok Valid Solution (Length = 1294).

Test #58:

score: 0
Accepted
time: 0ms
memory: 22312kb

input:

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

output:

LLLLLLLLLLLDRDDLDDDDDDRUUUUURDDDDDDLDLRDDLDDDDRUUURUUURUUUUUUUUUULRRDRURDDLDLDRDDLDRLURRUUURUUURDDDDLDDDDLDLLDDLDDDLDDRURUUURUDDRLULDDDDRURRURUUUUUUUURUUUURUULRRDDDLRRUUUURDDDDDLDLLDDDLDDDDDDDDLLRRRUUUUUUURUUURDDDDLDDDDDDRUUUUURUUUUUURUUUUUURDURRRDDLLDLDDDDDLDDDDRUURUUUURUUURDDDDLDDRDDLLDDLDLLUDDDDR...

result:

ok Valid Solution (Length = 1326).

Test #59:

score: 0
Accepted
time: 0ms
memory: 3564kb

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: 3ms
memory: 26540kb

input:

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

output:

UUUUUUUUUUUUUUULLLLDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDRDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDD...

result:

ok Valid Solution (Length = 1652).

Test #61:

score: 0
Accepted
time: 0ms
memory: 24120kb

input:

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

output:

UUUUUUUUUUUUUUUUUDLLUDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUDRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLR...

result:

ok Valid Solution (Length = 1222).

Test #62:

score: 0
Accepted
time: 0ms
memory: 21668kb

input:

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

output:

LLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLL...

result:

ok Valid Solution (Length = 980).

Test #63:

score: 0
Accepted
time: 0ms
memory: 3828kb

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: 0ms
memory: 20884kb

input:

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

output:

LLLLLLLLLLLLLLDDDDRUUUDRRUDDDLRRRUUUDLRRRRRRDDLLLLDDLLLLLLRDDLRRDDLLDDDDRUUUDRDDDLDLDDRUDDURRUUUURDDRUURRUULUULUUULLDRDDLRUULURRDRRRDDLRDDDDDDLLDDLLRDURRUDRDURUUUUUUUUUURUULLLRRRRUURRRUUUDLLULDURDRRRRUULRRRDDLDLDLDDLLLDLDDLDDDRUURUURUDDDRDDLLRRDDLLLLDDDDDURUUUDRRDDLDURRRRDURRUULLUULUURUUUULUDLRRRRDD...

result:

ok Valid Solution (Length = 1224).

Test #65:

score: 0
Accepted
time: 2ms
memory: 23896kb

input:

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

output:

UUUUUUUUUUUUULULLLLLLLLLLLLLLDLLULLDDDDDDDDDDDDDDDDDDDRRUUULUUURDRUUUUUUULUUUUULUDDDUURRDDDRUUURDDDDDLRDDLDDDDRUUURUUUUUUUUURDDDDDDDDDDDLDDLDLLDDDDRUUURDDDRURUUUUURUUUUUUUUUUUURDDDDDDDDDDDDDLDDDDDRUURUUUUUUUUUUUUDRDDDDRURUUUUULUUULDLDRLURURRDRUDRDDLRDDLDDRURUUUUUURDDDDDDDLRDDLLUDLLDLDLDDDDDDLDRRURUU...

result:

ok Valid Solution (Length = 1462).

Test #66:

score: 0
Accepted
time: 0ms
memory: 3832kb

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: 0ms
memory: 31136kb

input:

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

output:

UUUULLLLLLLLLLLLLLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUU...

result:

ok Valid Solution (Length = 3056).

Test #68:

score: 0
Accepted
time: 4ms
memory: 20948kb

input:

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

output:

UUUUUUUUUUUUUUUUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUUUUUUUUUDL...

result:

ok Valid Solution (Length = 2284).

Test #69:

score: 0
Accepted
time: 0ms
memory: 24084kb

input:

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

output:

LLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLL...

result:

ok Valid Solution (Length = 1854).

Test #70:

score: 0
Accepted
time: 0ms
memory: 3516kb

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: 10ms
memory: 27300kb

input:

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

output:

UUUUUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRURDDDLLDDDDDDRRDDLLRRRRUUUUUUUUUULUDDDDDLLDDRURDULDLUURRUUUURRURDDDLDDRUDRDDLLRDDLDDDLDLLLLDDDDDDDDDDDDRDDLDRRURRUUUULLLRDDRLUURRRRUULUULLLUUUUURDRDDLRRRUUUUUUUDRRRUUUULUURRRUULLUUURDRURDDDRUURUDDDRDDLLLRDDLLLRRDDLLRDDLDLDLLRRRDDLLLDDRDDLLRRRUUURDDDRUUUURUULRRRU...

result:

ok Valid Solution (Length = 2760).

Test #72:

score: 0
Accepted
time: 6ms
memory: 30576kb

input:

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

output:

UUUUULUUUUUUUULUUUUUUUUUUULLDDDDDRDDLDDDRUUDDDDLDDDDDDDDDDDDDRUUUUUUUUUUUURUDDDDDDDDDDRUUDDDDLDDLDLRDDLRUURRUURDDURURUUUUUUUUUUUUUUUUUUUUUUUUULLLDRDDLDDDDDDRUUUUURUUUDDDDULDDDRLDDDDDDDDDDRUUUUUUUUDDDDDDDDDDDDDDUUUUUULUUUUUUUULUUUUUURUULURRRRDDDDDDDDRUUUUUUUUDRDDDDDDDDLDLRDDLDDDDDDDDDDDDDDLDDLRDRUURU...

result:

ok Valid Solution (Length = 3402).

Test #73:

score: 0
Accepted
time: 1ms
memory: 3868kb

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: 0ms
memory: 24828kb

input:

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

output:

UUUUUUULLLLLLLLLLLLLLLLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUU...

result:

ok Valid Solution (Length = 2560).

Test #75:

score: 0
Accepted
time: 3ms
memory: 25360kb

input:

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

output:

LUUUUUUUUUUUUUULLLLLLLLLLLLLLLLLLLLLLLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDD...

result:

ok Valid Solution (Length = 1946).

Test #76:

score: 0
Accepted
time: 4ms
memory: 16192kb

input:

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

output:

LLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 1446).

Test #77:

score: 0
Accepted
time: 0ms
memory: 3572kb

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: 4ms
memory: 28992kb

input:

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

output:

UUUUUUUUUUUUUUUUUUULRRRDDLDDRRUUUURDDRUUUUUUULDLLLLLRRDDLLRRRURDRUDLULDLUURRRURRDRURDDDLLRDDLRDDLRDDLLLRRDDLLLLLRRDDLLDDRDDLDDDDRUURRDDLDDLLRRDRUURURUULUUUUUULUDRRDDRDDLRDDDDRUURUULUUUULRRRDDLRRRUUUUUULLUULUULDDDDDLDRRRRLLLLURURLUUUURRRUUUUURDDDDDRUURUULUDRRURDRURDDDLLLUDRRDDLLLRDDLLUDLLRRDDRRUDRDDL...

result:

ok Valid Solution (Length = 2254).

Test #79:

score: 0
Accepted
time: 0ms
memory: 22428kb

input:

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

output:

ULUUULLDLLULLLLLLLLLLLLLLLLLLDDDDDRURUUULDURRDDDDLDLDLRDRURURUUUUURDDDRUUURDDDDLDLDLDLDLDLLUDDDDDRUUURDDDDLDLDDDDDDDDRUUUUUUURURUUUUUURDDDDDDDLDLDDDDDDRRUUULUURURUUUUUUUUUURURURUUUUUDRDDDDDLDLRDDLLUDDDDDDDDDRUUUUUUURDDDDDDDDLDLLUDDDDDRUUURDDDRUUUURUUUUUUURUUUUUUURUUUUULDDDUUURRDDDDDDLDDDDDDDLDDDDDDR...

result:

ok Valid Solution (Length = 2826).

Test #80:

score: 0
Accepted
time: 0ms
memory: 3640kb

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: 8ms
memory: 31464kb

input:

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

output:

UUUUUUUUUUUUUUUUUUUUUUUULLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUU...

result:

ok Valid Solution (Length = 3688).

Test #82:

score: 0
Accepted
time: 11ms
memory: 30352kb

input:

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

output:

UUUUUUUUUUUUUUUUUUUDLLUDLLUDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUUUUUUUUUDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRRUDDDLRDDLRDDLRDDLRRRUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLRRRUDDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRRRUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 2732).

Test #83:

score: 0
Accepted
time: 7ms
memory: 24420kb

input:

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

output:

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 2320).

Test #84:

score: 0
Accepted
time: 0ms
memory: 3512kb

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: 14ms
memory: 31232kb

input:

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

output:

LDDRURUUULLRRRDDRRUULRRDDRDDLLLLLDDLLDDRRRRRUUUDLLRRRDDDDLLLLLLRDDLDDDDRDDLDDRDDLDDRDDLRDDLRRUURDDDLRRUUURRRDDLLDURRRUURUULLUUUUUUUUUUUULLLLLUDDDLRRURDDDLLDDDDDDDDRUURUULUUURDRDDDDRLUURLUURLLULDDDRDDLDDRRRLLLLUUUUUUUURRRRUUUDLRDDLLUUULDLUURRRRRRUULUURRUULLUDRRRDDRRRDDLLLLUDDDDDLRDDLRRUURDDRRUUUULLUD...

result:

ok Valid Solution (Length = 2756).

Test #86:

score: 0
Accepted
time: 0ms
memory: 29660kb

input:

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

output:

UUUUUUUUUUUUUUUUUULLLLLLLLLLLLLLLLLLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUURUULUDRRDDDLDDDDDDDLDLDRRURUUUUUUURUUUUUUULUUUUUUUUUUUUULLDDDDRUUUDDDDDLDDDDDDDRUUUUUDDDDDDRLULUUUUUUURUULUUUURRRDDDDDDDDDRUUUUUUUUURDDDDDDDDDDLDLRRDDLDDDDDDDDLDDDDDDDLRRRUUUULUURUUUUUUUURUUUUUUUURDDDDDDDDDLDDDDDRUUUURUUU...

result:

ok Valid Solution (Length = 3390).

Test #87:

score: 0
Accepted
time: 0ms
memory: 3672kb

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: 8ms
memory: 30832kb

input:

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

output:

UUUUUUUUUUUUUUUUUUUUUUUUUUUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDD...

result:

ok Valid Solution (Length = 3658).

Extra Test:

score: 0
Extra Test Passed