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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#735357#9573. Social Mediaxbzxzn#WA 18ms3876kbC++171.3kb2024-11-11 19:27:232024-11-11 19:27:23

Judging History

你现在查看的是最新测评结果

  • [2024-11-11 19:27:23]
  • 评测
  • 测评结果:WA
  • 用时:18ms
  • 内存:3876kb
  • [2024-11-11 19:27:23]
  • 提交

answer

#include <bits/stdc++.h>
using i64 = long long;
void solve() {
    int n, m, k;
    std::cin >> n >> m >> k;
    std::vector<int> f(n), s1(k), cnt(k);
    for (int i = 0; i < n; i++) {
        std::cin >> f[i];
        f[i]--;
        s1[f[i]] = 1;
    }

    i64 ans = 0;
    std::map<std::pair<int, int>, int> e;
    for (int i = 0; i < m; i++) {
        int x, y;
        std::cin >> x >> y;
        x--, y--;
        if (x > y) std::swap(x, y);
        if (x == y) {
            cnt[x]++;
            continue;
        }
        if (s1[x] && s1[y]) {
            ans++; 
        } else if (s1[x]) {
            cnt[y]++; 
        } else if (s1[y]) {
            cnt[x]++;
        } else {
            assert(!s1[x] && !s1[y]);
            e[{x, y}]++;
        }
    } 
    i64 tmp = 0;
    for (auto [fi, sc] : e) {
        tmp = std::max(tmp, 1LL * cnt[fi.first] + cnt[fi.second] + ans + sc);
    } 
    std::sort(cnt.begin(), cnt.end(), std::greater());
    if (cnt.size() > 1) {
        tmp = std::max(tmp, ans + cnt[0] + cnt[1]);
    } 
    tmp = std::max(tmp, ans);
    std::cout << tmp << "\n";
}
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int t;
    std::cin >> t;
    while (t--) {
        solve();
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3624kb

input:

5
4 12 7
5 7 3 6
3 6
2 2
1 4
2 4
1 3
7 6
4 1
5 4
1 1
1 1
2 1
3 7
2 7 6
2 4
1 2
3 2
2 5
5 4
2 6
4 6
2 6
1 1 2
1
1 2
2 1 2
1 2
1 2
2 1 100
24 11
11 24

output:

9
5
1
1
1

result:

ok 5 number(s): "9 5 1 1 1"

Test #2:

score: -100
Wrong Answer
time: 18ms
memory: 3876kb

input:

10000
19 12 20
8 12 1 5 11 7 17 13 19 6 3 9 10 15 14 20 4 18 16
4 11
7 1
8 4
16 19
1 13
15 2
16 2
8 7
3 15
11 13
5 20
18 14
17 14 20
2 9 1 12 8 11 10 17 18 16 3 15 5 14 20 13 7
15 10
3 2
5 16
7 8
6 1
6 4
18 16
1 8
4 1
20 6
6 9
4 15
7 5
14 9
1 3 18
9
15 18
17 15
11 14
7 19 7
3 1 2 5 6 4 7
5 1
4 5
3 1...

output:

12
14
1
19
6
5
1
11
19
4
3
10
4
1
4
18
15
2
18
4
17
4
1
2
5
16
3
2
6
15
6
3
6
4
3
7
3
7
4
1
15
15
2
3
6
11
11
7
5
8
8
6
8
11
16
1
4
9
8
14
2
6
19
16
16
8
20
14
6
12
6
9
6
8
2
16
9
5
5
3
6
6
20
8
13
11
8
5
2
6
3
1
8
4
8
11
7
13
9
9
8
11
7
9
5
2
8
14
10
5
3
5
5
8
1
6
9
16
5
3
19
1
3
8
7
10
4
2
1
12
1
...

result:

wrong answer 16th numbers differ - expected: '19', found: '18'