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Submission #976054

# Submission time Handle Problem Language Result Execution time Memory
976054 2024-05-06T06:33:05 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 374 ms 5820 KB 
#include <bits/stdc++.h>
using namespace std;

const int kaps = 3e5 + 5;

int main(){
    long long n;
    cin >> n;
    int x[kaps], y[kaps];
    int ans = 0;
    map <int, int> jx;
    map <int, int> jy;
    for(int i = 0; i < n; i++){
        cin >> x[i] >> y[i];
        jx[x[i]]++;
        jy[y[i]]++;
    }for(int i = 0; i < n; i++){
        ans += (jx[x[i]] - 1) * (jy[y[i]] - 1);
    }cout << ans << endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2648 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 2 ms 2648 KB Output is correct
9 Correct 3 ms 2904 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2776 KB Output is correct
12 Correct 9 ms 3160 KB Output is correct
13 Correct 10 ms 3164 KB Output is correct
14 Correct 13 ms 3420 KB Output is correct
15 Correct 127 ms 5640 KB Output is correct
16 Correct 139 ms 5716 KB Output is correct
17 Correct 124 ms 5460 KB Output is correct
18 Correct 125 ms 5656 KB Output is correct
19 Correct 346 ms 5600 KB Output is correct
20 Correct 247 ms 5820 KB Output is correct
21 Correct 373 ms 5712 KB Output is correct
22 Correct 374 ms 5712 KB Output is correct