oj.uz

Submission #645537

# Submission time Handle Problem Language Result Execution time Memory
645537 2022-09-27T10:04:26 Z phoenix Star triangles (IZhO11_triangle) C++17
100 / 100
 276 ms 13500 KB 
#include<bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int n;
    cin >> n;
    vector<pair<int, int>> v;
    map<int, int> cntX, cntY;
    for(int i = 1;i <= n;i++) {
        int x, y;
        cin >> x >> y;
        cntX[ x ]++;
        cntY[ y ]++;
        v.push_back({x, y});
    }
    long long res = 0;
    for(auto c : v) {
        res += 1ll * (cntX[ c.first ] - 1) * (cntY[ c.second ] - 1);
    }
    cout << res;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 6 ms 980 KB Output is correct
13 Correct 6 ms 1064 KB Output is correct
14 Correct 9 ms 1364 KB Output is correct
15 Correct 96 ms 6072 KB Output is correct
16 Correct 100 ms 6408 KB Output is correct
17 Correct 94 ms 6112 KB Output is correct
18 Correct 95 ms 6144 KB Output is correct
19 Correct 262 ms 13376 KB Output is correct
20 Correct 180 ms 9144 KB Output is correct
21 Correct 276 ms 13384 KB Output is correct
22 Correct 276 ms 13500 KB Output is correct