QOJ.ac

QOJ

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
#752174	#5307. Subgraph Isomorphism	einekleine18	WA	72ms	3556kb	C++20	896b	2024-11-15 22:32:22	2024-11-15 22:32:22

Judging History

你现在查看的是最新测评结果

[2024-11-15 22:32:22]
评测

测评结果：WA
用时：72ms
内存：3556kb

查看

[2024-11-15 22:32:22]
提交

answer

#include<bits/stdc++.h>
#include <vector>

#define int long long
void slove(){
    int n,m;
    std::cin>>n>>m;
    std::vector g(n,std::set<int>());
    for(int i=0;i<m;++i){
        int a,b;
        std::cin>>a>>b;
        --a,--b;
        g[a].insert(b);
        g[b].insert(a);
    }
    m=0;
    for(int i=0;i<n;++i){
        m+=g[i].size();
    }
    m/=2;
    int f=0;
    if(m==n-1){
        f=1;
    }else if(m==n){
        f=1;
        for(int i=0;i<n;++i){
            if((int)g[i].size()!=2){
                f=0;
            }
        }
    }
    std::cout<<(f?"Yes\n":"No\n");
}
signed main(){
#ifdef LOCAL
    std::freopen("in.txt","r",stdin);
    std::freopen("out.txt","w",stdout);
#endif
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int _=1;
    std::cin>>_;
    for(int i=0;i<_;++i){
        slove();
    }
}

源文件, 语言: C++20

詳細信息

Test #1:

score: 100

Accepted

time: 0ms

memory: 3556kb

input:

output:

Yes
Yes
No
Yes

result:

ok 4 token(s): yes count is 3, no count is 1

Test #2:

score: -100

Wrong Answer

time: 72ms

memory: 3504kb

input:

output:

Yes
Yes
Yes
Yes
Yes
No
Yes
No
No
Yes
Yes
No
No
No
No
No
No
Yes
No
No
No
No
Yes
No
No
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
No
No
No
No
No
No
No
No
Yes
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
N...

result:

wrong answer expected YES, found NO [39th token]