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Submission #974712

# Submission time Handle Problem Language Result Execution time Memory
974712 2024-05-03T16:48:32 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 372 ms 9396 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    int zx, zy, n, res = 0;
    cin >> n;
    vector<pair<int, int> > p;
    map<int, int> mx, my;
    for (int i=0; i<n; i++) {
        cin >> zx >> zy;
        p.push_back({zx, zy});
        mx[zx]++;
        my[zy]++;
    }
    for (auto i : p) {
        zx = mx[i.first] - 1;
        zy = my[i.second] - 1;
        res += zx * zy;
    }
    cout << res << 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 0 ms 348 KB Output is correct
3 Correct 0 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 348 KB Output is correct
8 Correct 0 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 9 ms 972 KB Output is correct
13 Correct 9 ms 860 KB Output is correct
14 Correct 12 ms 1260 KB Output is correct
15 Correct 123 ms 4036 KB Output is correct
16 Correct 157 ms 4200 KB Output is correct
17 Correct 141 ms 4140 KB Output is correct
18 Correct 148 ms 4040 KB Output is correct
19 Correct 349 ms 9396 KB Output is correct
20 Correct 250 ms 5284 KB Output is correct
21 Correct 369 ms 7864 KB Output is correct
22 Correct 372 ms 8520 KB Output is correct