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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
#463421#997. 2-SAT 问题crazy_sea#WA 26ms11760kbC++14931b2024-07-04 20:16:292024-07-04 20:16:29

Judging History

你现在查看的是最新测评结果

  • [2024-07-04 20:16:29]
  • 评测
  • 测评结果:WA
  • 用时:26ms
  • 内存:11760kb
  • [2024-07-04 20:16:29]
  • 提交

answer

#include<cstdio>
#include<algorithm>
using namespace std;
const int N=2e6+10;
struct edge{
	int next,to;
}e[N];
int first[N],len,cnt,dfn[N],low[N],t[N],col[N],tot;
void add(int a,int b)
{
	e[++len]=edge{first[a],b};
	first[a]=len;
}
void dfs(int x)
{
	dfn[x]=low[x]=++cnt;
	t[++len]=x;
	for(int i=first[x],y;i;i=e[i].next)
	{
		y=e[i].to;
		if(col[y]) continue;
		if(!dfn[y]) dfs(y);
		low[x]=min(low[x],low[y]);
	}
	if(dfn[x]==low[x])
	{
		tot++;
		while(1)
		{
			col[t[len]]=tot;
			if(t[len--]==x) return;
		}
	}
}
int n,m,x,y,a,b;
int main()
{
	scanf("%d%d",&n,&m);
	for(int i=1;i<=m;i++)
	{
		scanf("%d%d%d%d",&x,&a,&y,&b);
		add(x+n*a,y+n*(b^1));
		add(y+n*b,x+n*(a^1));
	}
	len=0;
	for(int i=1;i<=2*n;i++)
		if(!dfn[i]) dfs(i);
	for(int i=1;i<=n;i++)
		if(col[i]==col[i+n]) {printf("NO");return 0;}
	printf("YES\n");
	for(int i=1;i<=n;i++) printf("%d ",col[i]<col[i+n]);
}

詳細信息

Test #1:

score: 0
Wrong Answer
time: 26ms
memory: 11760kb

input:

86354 86418
14615 0 14903 1
13605 0 4458 0
15604 0 77112 0
52311 1 64996 0
22711 1 74245 1
39042 1 57372 1
2994 1 84183 1
80574 0 58791 1
27780 1 9336 1
61809 0 7216 0
71113 0 42287 1
20073 0 72448 0
73840 0 77048 0
28955 0 4165 0
16322 1 14075 1
43512 0 58600 1
45219 0 53858 0
14919 0 22576 0
16594...

output:

YES
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

result:

wrong answer You didn't find a solution but jury did.