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Submission #572243

# Submission time Handle Problem Language Result Execution time Memory
572243 2022-06-04T05:22:10 Z SSRS Star triangles (IZhO11_triangle) C++14
100 / 100
 486 ms 12188 KB 
#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  vector<int> X(N), Y(N);
  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]]++;
    mpY[Y[i]]++;
  }
  long long ans = 0;
  for (int i = 0; i < N; i++){
    ans += (long long) (mpX[X[i]] - 1) * (mpY[Y[i]] - 1);
  }
  cout << ans << endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 308 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 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 312 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 11 ms 980 KB Output is correct
13 Correct 13 ms 980 KB Output is correct
14 Correct 17 ms 1364 KB Output is correct
15 Correct 185 ms 6056 KB Output is correct
16 Correct 168 ms 6348 KB Output is correct
17 Correct 153 ms 6168 KB Output is correct
18 Correct 162 ms 6092 KB Output is correct
19 Correct 448 ms 11656 KB Output is correct
20 Correct 322 ms 9280 KB Output is correct
21 Correct 486 ms 12188 KB Output is correct
22 Correct 452 ms 12108 KB Output is correct