oj.uz

Submission #945399

# Submission time Handle Problem Language Result Execution time Memory
945399 2024-03-13T17:53:14 Z NourWael Star triangles (IZhO11_triangle) C++17
100 / 100
 256 ms 15768 KB 
#include <bits/extc++.h>
#define int long long 
using namespace std; 
using namespace __gnu_pbds; 
map<int,int> x,y;

signed main() {
   ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
   
   int n; cin>>n;
   pair<int,int> p [n];
   for(int i=0; i<n; i++) {
      cin>>p[i].first>>p[i].second;
      x[p[i].first]++, y[p[i].second]++;;
   }
   int ans = 0;
   for(int i=0; i<n; i++) {
      ans += (x[p[i].first]-1) * (y[p[i].second]-1);
   }
   cout<<ans;
   return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1368 KB Output is correct
13 Correct 5 ms 1372 KB Output is correct
14 Correct 8 ms 1884 KB Output is correct
15 Correct 94 ms 8020 KB Output is correct
16 Correct 90 ms 8436 KB Output is correct
17 Correct 88 ms 8260 KB Output is correct
18 Correct 84 ms 8020 KB Output is correct
19 Correct 251 ms 14604 KB Output is correct
20 Correct 168 ms 11816 KB Output is correct
21 Correct 256 ms 15768 KB Output is correct
22 Correct 252 ms 15444 KB Output is correct