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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#326204	#5745. Graph Isomorphism	ushg8877	WA	33ms	3796kb	C++14	667b	2024-02-12 16:37:40	2024-02-12 16:37:40

Judging History

你现在查看的是最新测评结果

[2024-02-12 16:37:40]
评测

测评结果：WA
用时：33ms
内存：3796kb

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[2024-02-12 16:37:40]
提交

answer

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define MP make_pair
mt19937 rnd(time(0));
const int MAXN=1e5+5;
int n,m,d[MAXN];
void solve(){
	cin>>n>>m;
	for(int i=1;i<=n;i++) d[i]=0;
	for(int i=1;i<=m;i++){
		int u,v;cin>>u>>v;
		d[u]++;d[v]++;
	}
	if(n<=3) return cout<<"YES"<<endl,void();
	if(n==4&&max({d[1],d[2],d[3],d[4]})==2&&min({d[1],d[2],d[3],d[4]})==2)
			return cout<<"YES"<<endl,void();
	int cnt=0;
	for(int i=1;i<=n;i++) if(d[i]==n-1) cnt++;
	if(cnt==1&&m==n-1||cnt==n) cout<<"YES"<<endl;
	else cout<<"NO"<<endl;
}
int main(){
	ios::sync_with_stdio(false);
	int _;cin>>_;
	while(_--) solve();
	return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3724kb

input:

output:

YES
YES
NO

result:

ok 3 token(s): yes count is 2, no count is 1

Test #2:

score: 0

Accepted

time: 16ms

memory: 3796kb

input:

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
...

result:

ok 39982 token(s): yes count is 39982, no count is 0

Test #3:

score: -100

Wrong Answer

time: 33ms

memory: 3792kb

input:

output:

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

result:

wrong answer expected YES, found NO [93rd token]