oj.uz

Submission #1116448

# Submission time Handle Problem Language Result Execution time Memory
1116448 2024-11-21T16:35:52 Z heey Star triangles (IZhO11_triangle) C++14
100 / 100
 408 ms 29768 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    map<pair<int,int>, int> p;
    map<int,int> x;
    map<int,int> y;
    int n; cin >> n;
    for(int i = 0; i < n; i++){
        int X, Y; cin >> X >> Y;
        p[{X,Y}]++;
        x[X]++;
        y[Y]++;
    }
    int res = 0;
    for(pair<pair<int,int>, int> a : p){
        res += a.second * (x[a.first.first] - a.second) * (y[a.first.second] - a.second);
    }
    cout << res << '\n';
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 508 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 504 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 764 KB Output is correct
12 Correct 10 ms 1872 KB Output is correct
13 Correct 7 ms 1872 KB Output is correct
14 Correct 12 ms 2128 KB Output is correct
15 Correct 118 ms 12756 KB Output is correct
16 Correct 131 ms 13384 KB Output is correct
17 Correct 118 ms 12764 KB Output is correct
18 Correct 112 ms 12616 KB Output is correct
19 Correct 380 ms 27720 KB Output is correct
20 Correct 300 ms 21180 KB Output is correct
21 Correct 408 ms 29768 KB Output is correct
22 Correct 406 ms 29664 KB Output is correct