oj.uz

Submission #531684

# Submission time Handle Problem Language Result Execution time Memory
531684 2022-03-01T09:04:38 Z makanhulia Star triangles (IZhO11_triangle) C++17
100 / 100
 374 ms 15544 KB 
#include <bits/stdc++.h>
using namespace std;

#define nyahalo ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define otsumiko exit(0);
#define mikodanye priority_queue<pair<long long, long long>, vector<pair<long long, long long> >, greater<pair<long long, long long> > >
#define mikochi priority_queue<long long, vector<long long>, greater<long long> >

long long x[300069], y[300069];

int main() {
  nyahalo
  long long n, ans = 0;
  cin >> n;
  map<long long, long long> mpx, mpy;
  for (long long i=1; i<=n; i++) {
    cin >> x[i] >> y[i];
    mpx[x[i]]++;
    mpy[y[i]]++;
  }
  for (long long i=1; i<=n; i++) {
    ans += (mpx[x[i]]-1)*(mpy[y[i]]-1);
  }
  cout << ans << "\n";
  otsumiko
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 8 ms 1228 KB Output is correct
13 Correct 6 ms 1224 KB Output is correct
14 Correct 9 ms 1688 KB Output is correct
15 Correct 124 ms 7932 KB Output is correct
16 Correct 115 ms 8316 KB Output is correct
17 Correct 115 ms 7936 KB Output is correct
18 Correct 132 ms 7932 KB Output is correct
19 Correct 355 ms 14684 KB Output is correct
20 Correct 211 ms 11736 KB Output is correct
21 Correct 374 ms 15484 KB Output is correct
22 Correct 347 ms 15544 KB Output is correct