oj.uz

Submission #597196

# Submission time Handle Problem Language Result Execution time Memory
597196 2022-07-15T17:17:05 Z Trisanu_Das Star triangles (IZhO11_triangle) C++17
100 / 100
 462 ms 15584 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

signed main(){
  int n; cin >> n;
  pair<int, int> points[n]; map<int, int> X, Y;
  for(int i = 0; i < n; i++){
    cin >> points[i].first >> points[i].second;
    X[points[i].first]++; Y[points[i].second]++;
  }
  int ans = 0;
  for(int i = 0; i < n; i++) ans += (X[points[i].first] - 1) * (Y[points[i].second] - 1);
  cout << ans << '\n';
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 296 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 1 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 2 ms 340 KB Output is correct
12 Correct 13 ms 1108 KB Output is correct
13 Correct 11 ms 1208 KB Output is correct
14 Correct 16 ms 1684 KB Output is correct
15 Correct 164 ms 7852 KB Output is correct
16 Correct 170 ms 8268 KB Output is correct
17 Correct 157 ms 7796 KB Output is correct
18 Correct 158 ms 7852 KB Output is correct
19 Correct 423 ms 14692 KB Output is correct
20 Correct 313 ms 11724 KB Output is correct
21 Correct 456 ms 15584 KB Output is correct
22 Correct 462 ms 15576 KB Output is correct