Submission #91839

#	Time	Username	Problem	Language	Result	Execution time	Memory
91839		art85	Star triangles (IZhO11_triangle)	C++14	0 / 100	2 ms	376 KiB

triangle

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin >> n;
  double ans = 0;
  int A[n][2];
  for(int i = 0; i < n; i++){
    for(int j = 0; j < 2; j++){
      cin >> A[i][j];
    }
  }
  for(int i = 0; i < n-1; i++){
    for(int j = 0; j < n; j++){
      if(A[i][0] == A[j][0] || A[i][1] == A[j][1]) ans += 0.5;
    }
  }
  cout << int(ans);
}

• Subtask 1: 0 / 100