oj.uz

답안 #889834

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
889834 2023-12-20T07:54:26 Z Kakarot 별들과 삼각형 (IZhO11_triangle) C++
100 / 100
 84 ms 11872 KB 
#include <bits/stdc++.h>
#define ii unordered_map<int,int>
#define vi vector<int>
#define vii vector<pair<int,int>>
using namespace std;

void setIO() {
  cin.tie(0)->sync_with_stdio(0);
}

void solve() {
  int n,ans = 0;
  cin >> n;
  ii fx,fy;
  vi X(n),Y(n);
  for(int i = 0;i < n;++i) {
    cin >> X[i] >> Y[i];
    ++fx[X[i]];
    ++fy[Y[i]];
  }
  for(int i = 0;i < n;++i)
    ans += (fx[X[i]]-1)*(fy[Y[i]]-1);
  cout << ans;
}

int main() {
  setIO();
  solve();
  return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 460 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 3 ms 964 KB Output is correct
14 Correct 5 ms 1368 KB Output is correct
15 Correct 30 ms 5900 KB Output is correct
16 Correct 32 ms 6548 KB Output is correct
17 Correct 30 ms 5900 KB Output is correct
18 Correct 30 ms 5920 KB Output is correct
19 Correct 74 ms 11248 KB Output is correct
20 Correct 56 ms 8964 KB Output is correct
21 Correct 84 ms 11768 KB Output is correct
22 Correct 79 ms 11872 KB Output is correct