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Submission #974705

# Submission time Handle Problem Language Result Execution time Memory
974705 2024-05-03T16:27:37 Z vjudge1 Star triangles (IZhO11_triangle) C++14
100 / 100
 238 ms 12144 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n; 
    ll ans = 0;
    cin >> n;
    vector<int> x(n), y(n);
    map<int, int> mpX, mpY;


    for (int i = 0; i < n; i++) {
        cin >> x[i] >> y[i];
        mpX[x[i]]++;
        mpY[y[i]]++;
    }

    for (int i = 0; i < n; i++) {
        ans += (ll)(mpX[x[i]] - 1) * (mpY[y[i]] - 1);
    }

    cout << ans << "\n";
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 5 ms 996 KB Output is correct
14 Correct 8 ms 1556 KB Output is correct
15 Correct 82 ms 6228 KB Output is correct
16 Correct 90 ms 6620 KB Output is correct
17 Correct 82 ms 6160 KB Output is correct
18 Correct 80 ms 6224 KB Output is correct
19 Correct 219 ms 11676 KB Output is correct
20 Correct 158 ms 9264 KB Output is correct
21 Correct 228 ms 12116 KB Output is correct
22 Correct 238 ms 12144 KB Output is correct