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Submission #920294

# Submission time Handle Problem Language Result Execution time Memory
920294 2024-02-02T12:22:25 Z hasuhasuiro Star triangles (IZhO11_triangle) C++17
100 / 100
 348 ms 12368 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    int N;
    cin >> N;
    vector X(N, 0), Y(N, 0);
    for(int i = 0; i < N; i++) cin >> X[i] >> Y[i];
    map<int, int> mpx, mpy;
    for(int i = 0; i < N; i++) mpx[X[i]]++;
    for(int i = 0; i < N; i++) mpy[Y[i]]++;
    long long ans(0);
    for(int i = 0; i < N; i++) ans += ((long long)(mpx[X[i]]-1) * (long long)(mpy[Y[i]]-1));
    cout << ans << endl;
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 10 ms 1112 KB Output is correct
14 Correct 12 ms 1344 KB Output is correct
15 Correct 131 ms 6180 KB Output is correct
16 Correct 127 ms 6480 KB Output is correct
17 Correct 117 ms 6228 KB Output is correct
18 Correct 117 ms 6224 KB Output is correct
19 Correct 329 ms 11556 KB Output is correct
20 Correct 235 ms 9296 KB Output is correct
21 Correct 348 ms 12368 KB Output is correct
22 Correct 341 ms 12112 KB Output is correct