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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
#75411	#5307. Subgraph Isomorphism	team1377^#	WA	49ms	5820kb	C++14	959b	2023-02-05 09:38:03	2023-10-15 17:24:13

Judging History

你现在查看的是最新测评结果

[2023-10-15 17:24:13]
管理员手动重测本题所有提交记录

测评结果：WA
用时：49ms
内存：5820kb

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[2023-08-10 23:21:45]
System Update: QOJ starts to keep a history of the judgings of all the submissions.

[2023-02-05 09:38:07]
评测

测评结果：0
用时：70ms
内存：5832kb

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[2023-02-05 09:38:03]
提交

answer

#include <bits/stdc++.h>

using namespace std;

const int N = 1e5 + 5;

vector<int> G[N];

signed main()
{
    int T;
    scanf("%d", &T);
    while (T--) {
        int n, m;
        scanf("%d%d", &n, &m);
        for (int i = 1; i <= n; ++i) {
            G[i].clear();
        }
        for (int i = 1; i <= m; ++i) {
            int x, y;
            scanf("%d%d", &x, &y);
            G[x].push_back(y);
            G[y].push_back(x);
        }
        if (m == n - 1) {
            puts("YES");
        } else if (m != n) {
            puts("NO");
        } else {
            int flag = 1;
            for (int i = 1; i <= n; ++i) {
                if (G[i].size() != 2) {
                    flag = 0;
                    break;
                }
            }
            if (flag) {
                puts("YES");
            } else {
                puts("NO");
            }
        }
    }
    return 0;
}

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 2ms

memory: 5700kb

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: 49ms

memory: 5820kb

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]