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Submission #976650

# Submission time Handle Problem Language Result Execution time Memory
976650 2024-05-07T00:14:13 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 453 ms 17016 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main() {
    map<ll, int> datx;
    map<ll, int> daty;
    int n; cin >> n;
    vector <pair<ll, ll>> titik;
    for (int i=0;i<n;i++) {
        ll x, y; cin >> x >> y;
        titik.push_back({x, y});
        datx[x]++;
        daty[y]++;
    }
    ll ans = 0;
    for (auto i:titik) {
        ans+= (datx[i.first]-1)*(daty[i.second]-1);
    }
    cout << ans << endl;
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 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 12 ms 1368 KB Output is correct
13 Correct 9 ms 1372 KB Output is correct
14 Correct 17 ms 1752 KB Output is correct
15 Correct 129 ms 7352 KB Output is correct
16 Correct 154 ms 7700 KB Output is correct
17 Correct 156 ms 7440 KB Output is correct
18 Correct 144 ms 7292 KB Output is correct
19 Correct 389 ms 16756 KB Output is correct
20 Correct 304 ms 10892 KB Output is correct
21 Correct 423 ms 17016 KB Output is correct
22 Correct 453 ms 16664 KB Output is correct