oj.uz

Submission #336085

# Submission time Handle Problem Language Result Execution time Memory
336085 2020-12-14T17:19:00 Z nikatamliani Star triangles (IZhO11_triangle) C++14
100 / 100
 700 ms 12172 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 3e5+10;
int x[N], y[N];
map<int,int> X, Y;
int main() {
    int n;
    cin >> n;
    for(int i = 1; i <= n; ++i) {
        cin >> x[i] >> y[i];
        ++X[x[i]];
        ++Y[y[i]];
    }
    long long ans = 0;
    for(int i = 1; i <= n; ++i) {
        ans += (long long)(X[x[i]] - 1) * (Y[y[i]] - 1); 
    }
    cout << ans << '\n';
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 12 ms 876 KB Output is correct
13 Correct 14 ms 876 KB Output is correct
14 Correct 18 ms 1260 KB Output is correct
15 Correct 217 ms 4076 KB Output is correct
16 Correct 217 ms 4204 KB Output is correct
17 Correct 209 ms 4204 KB Output is correct
18 Correct 200 ms 4076 KB Output is correct
19 Correct 579 ms 7248 KB Output is correct
20 Correct 410 ms 9452 KB Output is correct
21 Correct 659 ms 12172 KB Output is correct
22 Correct 700 ms 12132 KB Output is correct