Submission #73609460

Source Code Expand

#include <iostream>
#include <vector>
#include <map>
using namespace std;
int n, m;
map<pair<int, int>, int> mp;
vector<pair<int, int>> e;
int ans;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= m; i++)
    {
        int u, v;
        cin >> u >> v;
        if (u > v)
            swap(u, v);
        e.push_back({u, v});
        mp[{u, v}]++;
    }
    for (auto i : e)
    {
        if (mp[i] >= 2)
            mp[i] = 0, ans++;
    }
    cout << ans;
}

Submission Info

Submission Time
Task B - Investigation of Friend Relationships
User Hygrox
Language C++23 (GCC 15.2.0)
Score 266
Code Size 555 Byte
Status AC
Exec Time 149 ms
Memory 17456 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 266 / 266
Status
AC × 3
AC × 76
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt, in69.txt, in70.txt, in71.txt, in72.txt, in73.txt
Case Name Status Exec Time Memory
in01.txt AC 1 ms 3556 KiB
in02.txt AC 1 ms 3556 KiB
in03.txt AC 1 ms 3492 KiB
in04.txt AC 1 ms 3708 KiB
in05.txt AC 1 ms 3616 KiB
in06.txt AC 1 ms 3708 KiB
in07.txt AC 1 ms 3604 KiB
in08.txt AC 99 ms 11200 KiB
in09.txt AC 3 ms 3872 KiB
in10.txt AC 149 ms 17396 KiB
in11.txt AC 148 ms 17336 KiB
in12.txt AC 137 ms 14288 KiB
in13.txt AC 143 ms 15776 KiB
in14.txt AC 146 ms 17356 KiB
in15.txt AC 120 ms 11216 KiB
in16.txt AC 141 ms 17368 KiB
in17.txt AC 145 ms 17312 KiB
in18.txt AC 1 ms 3512 KiB
in19.txt AC 146 ms 17340 KiB
in20.txt AC 125 ms 11272 KiB
in21.txt AC 65 ms 11204 KiB
in22.txt AC 67 ms 11136 KiB
in23.txt AC 66 ms 11272 KiB
in24.txt AC 63 ms 11228 KiB
in25.txt AC 149 ms 17296 KiB
in26.txt AC 147 ms 17456 KiB
in27.txt AC 1 ms 3564 KiB
in28.txt AC 1 ms 3540 KiB
in29.txt AC 1 ms 3676 KiB
in30.txt AC 2 ms 3716 KiB
in31.txt AC 2 ms 3644 KiB
in32.txt AC 2 ms 3552 KiB
in33.txt AC 73 ms 17288 KiB
in34.txt AC 1 ms 3536 KiB
in35.txt AC 1 ms 3568 KiB
in36.txt AC 1 ms 3556 KiB
in37.txt AC 1 ms 3440 KiB
in38.txt AC 1 ms 3632 KiB
in39.txt AC 1 ms 3440 KiB
in40.txt AC 1 ms 3556 KiB
in41.txt AC 1 ms 3476 KiB
in42.txt AC 1 ms 3644 KiB
in43.txt AC 1 ms 3556 KiB
in44.txt AC 139 ms 16692 KiB
in45.txt AC 1 ms 3548 KiB
in46.txt AC 138 ms 14232 KiB
in47.txt AC 120 ms 11412 KiB
in48.txt AC 99 ms 11308 KiB
in49.txt AC 148 ms 17356 KiB
in50.txt AC 123 ms 11224 KiB
in51.txt AC 62 ms 11424 KiB
in52.txt AC 121 ms 11220 KiB
in53.txt AC 124 ms 11280 KiB
in54.txt AC 144 ms 16200 KiB
in55.txt AC 144 ms 16196 KiB
in56.txt AC 79 ms 17348 KiB
in57.txt AC 61 ms 11456 KiB
in58.txt AC 1 ms 3432 KiB
in59.txt AC 1 ms 3556 KiB
in60.txt AC 1 ms 3440 KiB
in61.txt AC 1 ms 3432 KiB
in62.txt AC 1 ms 3524 KiB
in63.txt AC 1 ms 3488 KiB
in64.txt AC 1 ms 3548 KiB
in65.txt AC 1 ms 3836 KiB
in66.txt AC 1 ms 3652 KiB
in67.txt AC 1 ms 3488 KiB
in68.txt AC 1 ms 3556 KiB
in69.txt AC 1 ms 3476 KiB
in70.txt AC 1 ms 3708 KiB
in71.txt AC 1 ms 3492 KiB
in72.txt AC 1 ms 3564 KiB
in73.txt AC 62 ms 11400 KiB
sample01.txt AC 1 ms 3476 KiB
sample02.txt AC 1 ms 3544 KiB
sample03.txt AC 1 ms 3556 KiB