oj.uz

Submission #335612

# Submission time Handle Problem Language Result Execution time Memory
335612 2020-12-13T09:34:50 Z StanCatalin Star triangles (IZhO11_triangle) C++14
0 / 100
 1 ms 492 KB 
#include <iostream>
#include <algorithm>
#include <fstream>

using namespace std;

ifstream in("triangles.in");
ofstream out("triangles.out");

const int dim = 3e5 + 5;

int n,lin[dim],col[dim];
pair<int,int> a[dim];

int main()
{
    cin >> n;
    for (int i=1; i<=n; i++)
    {
        cin >> a[i].first >> a[i].second;
        lin[a[i].first]++;
        col[a[i].second]++;
    }
    int ans = 0;
    for (int i=1; i<=n; i++)
    {
        ans += (lin[a[i].first] - 1) * (col[a[i].second] - 1);
    }
    cout << ans;
    return 0;
}

Subtask #1
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 1 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 1 ms 492 KB Output is correct
11 Runtime error 1 ms 492 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Halted 0 ms 0 KB -