QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#618401#1869. Power Station of ArtFanyuXWA 145ms45076kbC++141.8kb2024-10-06 21:48:332024-10-06 21:48:34

Judging History

你现在查看的是最新测评结果

  • [2024-10-06 21:48:34]
  • 评测
  • 测评结果:WA
  • 用时:145ms
  • 内存:45076kb
  • [2024-10-06 21:48:33]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ri register
#define pii pair<int,int>
#define F first
#define S second
#define pb push_back
const int inf=0x3f3f3f3f;
inline int rd(){
	int x=0,y=1;char c=getchar();
	for(;c<'0'||c>'9';c=getchar())if(c=='-')y=-1;
	for(;c>='0'&&c<='9';c=getchar())x=(x<<1)+(x<<3)+(c^48);
	return x*y;
}
const int N=1e6+5;
int n,m,t,w[2][N];
bool vis[N],c[N],flg;
vector<int>e[N],vt[2];
char s[2][N];
void dfs(int u,bool co){
	if(vis[u]){
		flg|=c[u]!=co;
		return ;
	}
	c[u]=co;vis[u]=1;
	vt[co].pb(u);
	for(auto v:e[u])dfs(v,!co);
}
void sol(){
	for(int i=1;i<=n;i++)if(!vis[i]){
		flg=0;
		for(int j=0;j<2;j++)vt[j].clear();
		dfs(i,0);
		if(!flg){
			vector<int>val[2];
			for(int x=0;x<2;x++)
				for(auto j:vt[x])
					for(int k=0;k<2;k++)
						if(x)val[k].pb((s[k][j]^'B'^'R')*N+w[k][j]);
						else val[k].pb(s[k][j]*N+w[k][j]);
			for(int j=0;j<2;j++)
				sort(val[j].begin(),val[j].end());
			for(int j=0;j<val[0].size();j++)
				if(val[0][j]!=val[1][j])
					return puts("NO"),void();
		}else{
			int cnt[2]={};
			vector<int>val[2];
			for(int x=0;x<2;x++)
				for(auto j:vt[x])
					for(int k=0;k<2;k++)
						cnt[k]+=s[k][j]=='B'?-1:1,
						val[k].pb(w[k][j]);
			for(int j=0;j<2;j++)
				sort(val[j].begin(),val[j].end());
			for(int j=0;j<val[0].size();j++)
				if(val[0][j]^val[1][j])return puts("NO"),void();
			if(cnt[0]+cnt[1]&1)return puts("NO"),void();
		}
	}
	puts("YES");
}
signed main(){
	for(t=rd();t--;){
		n=rd();m=rd();
		for(int i=1;i<=n;i++)e[i].clear(),vis[i]=0;
		for(int u,v;m--;)
			u=rd(),v=rd(),e[u].pb(v),e[v].pb(u);
		for(int i=0;i<2;i++){
			for(int j=1;j<=n;j++)w[i][j]=rd();
			scanf("%s",s[i]+1);
		}
		sol();
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 4ms
memory: 32336kb

input:

3
2 1
1 2
3 4
RR
4 3
BB
3 2
1 2
2 3
1 1 1
RBR
1 1 1
BBB
3 3
1 2
2 3
3 1
1 1 1
RBR
1 1 1
BBB

output:

YES
NO
YES

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 145ms
memory: 45076kb

input:

25054
5 10
4 5
4 2
4 3
4 1
5 2
5 3
5 1
2 3
2 1
3 1
12 2 9 10 7
RRRBB
10 2 9 7 12
RRBRB
1 0
4
R
4
R
8 4
4 3
1 5
8 5
6 5
7 2 11 10 9 6 3 5
RBRBBRBR
7 2 10 11 6 5 3 9
RBRBBRBR
7 4
7 2
5 1
5 6
5 4
12 5 9 14 5 12 12
RRBRBRR
14 12 9 5 12 12 5
RBBRBRB
10 1
4 6
5 3 2 9 7 3 11 11 6 8
RRRBRRBBBR
5 3 2 3 7 9 1...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
YES
YES
YES
NO
YES
NO
YES
YES
NO
YES
YES
NO
YES
NO
YES
YES
YES
YES
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
NO
...

result:

wrong answer 10th lines differ - expected: 'NO', found: 'YES'