oj.uz

Submission #880584

# Submission time Handle Problem Language Result Execution time Memory
880584 2023-11-29T17:04:22 Z AlphaMale06 Star triangles (IZhO11_triangle) C++14
100 / 100
 245 ms 12304 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

map<int, int> xc;
map<int, int> yc;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    pair<int, int> a[n];
    for(int i=0; i< n; i++){
        cin >> a[i].first >> a[i].second;
        xc[a[i].first]++;
        yc[a[i].second]++;
    }
    ll ans=0;
    for(int i=0; i< n; i++){
        ans+=(xc[a[i].first]-1)*1ll*(yc[a[i].second]-1);
    }
    cout << ans << '\n';
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 944 KB Output is correct
13 Correct 5 ms 1116 KB Output is correct
14 Correct 8 ms 1476 KB Output is correct
15 Correct 87 ms 6456 KB Output is correct
16 Correct 88 ms 6596 KB Output is correct
17 Correct 81 ms 6228 KB Output is correct
18 Correct 80 ms 6172 KB Output is correct
19 Correct 224 ms 11704 KB Output is correct
20 Correct 156 ms 9296 KB Output is correct
21 Correct 232 ms 12236 KB Output is correct
22 Correct 245 ms 12304 KB Output is correct