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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#470511#5504. Flower GardenyhdddRE 15ms83884kbC++144.0kb2024-07-10 14:43:002024-07-10 14:43:00

Judging History

你现在查看的是最新测评结果

  • [2024-07-10 14:43:00]
  • 评测
  • 测评结果:RE
  • 用时:15ms
  • 内存:83884kb
  • [2024-07-10 14:43:00]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
#define mod 998244353ll
#define pii pair<int,int>
#define fi first
#define se second
#define mems(x,y) memset(x,y,sizeof(x))
using namespace std;
const int maxn=1000010;
const int inf=1e18;
inline int read(){
	int x=0,f=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=(x<<3)+(x<<1)+(ch-48);ch=getchar();}
	return x*f;
}
bool Mbe;

int n,m;
int head[maxn],tot;
struct nd{
	int nxt,to;
}e[maxn];
void add(int u,int v){e[++tot]={head[u],v};head[u]=tot;}
#define mid (l+r>>1)
#define ls nd<<1
#define rs nd<<1|1
int in[maxn<<2],out[maxn<<2],idx;
void build(int nd,int l,int r){
	in[nd]=++idx;out[nd]=++idx;
	if(l==r){
		add(in[nd],l),add(l,out[nd]);
		return ;
	}
	build(ls,l,mid),build(rs,mid+1,r);
	add(in[nd],in[ls]),add(in[nd],in[rs]),add(out[ls],out[nd]),add(out[rs],out[nd]);
}
void updin(int nd,int l,int r,int ql,int qr,int id){
	if(l>=ql&&r<=qr)return add(id,in[nd]);
	if(ql<=mid)updin(ls,l,mid,ql,qr,id);
	if(qr>mid)updin(rs,mid+1,r,ql,qr,id);
}
void updout(int nd,int l,int r,int ql,int qr,int id){
	if(l>=ql&&r<=qr)return add(out[nd],id);
	if(ql<=mid)updout(ls,l,mid,ql,qr,id);
	if(qr>mid)updout(rs,mid+1,r,ql,qr,id);
}
int dfn[maxn],lw[maxn],cnt;
int scc[maxn],scct;
int st[maxn],tp;
vector<int> id[maxn];
void tar(int u){
	lw[u]=dfn[u]=++cnt;st[++tp]=u;
	for(int i=head[u];i;i=e[i].nxt){
		int v=e[i].to;
		if(!dfn[v]){
			tar(v);
			lw[u]=min(lw[u],lw[v]);
		}
		else if(!scc[v])lw[u]=min(lw[u],dfn[v]);
	}
	if(dfn[u]==lw[u]){
		++scct;
		scc[st[tp]]=scct;
		if(st[tp]<=3*n)id[scct].push_back(st[tp]);
		while(st[tp--]!=u){
			scc[st[tp]]=scct;
			if(st[tp]<=3*n)id[scct].push_back(st[tp]);
		}
	}
}
vector<int> g[maxn],gg[maxn];int d[maxn];
queue<int> q;
bool ans[maxn];
map<pii,bool> bk;
int sum[maxn];
void dfs(int u){
	for(int i:id[u])ans[i]=1;
	for(int v:g[u])dfs(v);
}
void work(){
	n=read();m=read();idx=3*n;
	build(1,1,3*n);
	while(m--){
		int a=read(),b=read(),c=read(),d=read();++idx;
		updin(1,1,3*n,c,d,idx),updout(1,1,3*n,a,b,idx);
	}
	for(int i=1;i<=idx;i++)if(!dfn[i])tar(i);
	for(int u=1;u<=idx;u++){
		for(int i=head[u];i;i=e[i].nxt){
			int v=e[i].to;
			if(scc[u]!=scc[v]&&!bk[{scc[u],scc[v]}]){
				// cout<<scc[u]<<" "<<scc[v]<<"\n";
				g[scc[u]].push_back(scc[v]),gg[scc[v]].push_back(scc[u]),d[scc[u]]++;
				bk[{scc[u],scc[v]}]=bk[{scc[v],scc[u]}]=1;
			}
		}
	}
	bool fl=0;for(int i=1;i<=scct;i++)if(id[i].size()>n)fl=1;
	if(!fl){
		for(int i=1;i<=scct;i++)if(!d[i])q.push(i);
		int ss=0;
		while(!q.empty()){
			int u=q.front();q.pop();ss+=id[u].size();
			// cout<<u<<" "<<ss<<"\n";
			for(int i:id[u])ans[i]=1;
			if(ss>=n)break;
			for(int v:gg[u]){
				if(!d[v])continue;
				d[v]--;if(!d[v])q.push(v);
			}
		}
		while(!q.empty())q.pop();
		puts("TAK");
		for(int i=1;i<=3*n;i++){if(ans[i])printf("F");else printf("R");}printf("\n");
	}
	else{
		for(int i=1;i<=scct;i++)if(!d[i])q.push(i);
		while(!q.empty()){
			int u=q.front();q.pop();sum[u]+=id[u].size();
			for(int v:gg[u]){
				if(!d[v])continue;
				d[v]--;sum[v]+=sum[u];if(!d[v])q.push(v);
			}
		}
		bool fl=0;
		for(int u=1;u<=scct;u++)if(id[u].size()>n){
			if(sum[u]<=2*n){
				dfs(u);fl=1;
				break;	
			}
			int ss=0;for(int v:g[u])ss+=sum[v];
			if(ss>=n){
				for(int v:g[u])dfs(v);fl=1;
				break;
			}
		}
		if(!fl)puts("NIE");
		else{
			puts("TAK");
			for(int i=1;i<=3*n;i++){if(ans[i])printf("F");else printf("R");}printf("\n");
		}
	}
	for(int i=1;i<=idx;i++)head[i]=dfn[i]=scc[i]=0;tot=0;
	for(int i=1;i<=scct;i++)g[i].clear(),gg[i].clear(),id[i].clear(),sum[i]=0;
	bk.clear();idx=scct=cnt=tp=0;
	for(int i=1;i<=3*n;i++)ans[i]=d[i]=0;
}

// \
444

bool Med;
int T;
signed main(){
//	freopen(".in","r",stdin);
//	freopen(".out","w",stdout);
	
//	ios::sync_with_stdio(0);
//	cin.tie(0);cout.tie(0);
	
//	cerr<<(&Mbe-&Med)/1048576.0<<" MB\n";
	
	T=read();
	while(T--)work();
}

Details

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Test #1:

score: 100
Accepted
time: 15ms
memory: 83884kb

input:

2
1 3
1 1 2 2
1 2 3 3
1 1 3 3
1 3
1 1 2 2
2 2 3 3
3 3 1 1

output:

TAK
RRF
NIE

result:

ok good!

Test #2:

score: -100
Runtime Error

input:

10
33333 100000
28701 40192 93418 95143
95902 97908 78378 78461
36823 44196 22268 23996
23977 24786 33315 48829
83965 90411 4923 8445
20235 21177 32543 47454
29598 35414 72477 73049
2014 12632 42163 46466
64305 65518 98825 99552
32331 41625 92772 96224
26500 54122 76990 77126
18249 20335 31165 36080...

output:


result: