oj.uz

Submission #334057

# Submission time Handle Problem Language Result Execution time Memory
334057 2020-12-08T08:13:50 Z iulia13 Star triangles (IZhO11_triangle) C++14
100 / 100
 667 ms 8940 KB 
#include <iostream>
#include <map>
using namespace std;
struct ura{
    int x, y;
};
ura v[300005];
map <int, int> x;
map <int, int> y;
int main()
{
    int n, i;
    cin >> n;
    long long ans = 0;
    for (i = 1; i <= n; i++)
    {
        cin >> v[i].x >> v[i].y;
        x[v[i].x]++;
        y[v[i].y]++;
    }
    for (i = 1; i <= n; i++)
        ans += (long long)(x[v[i].x] - 1) * (y[v[i].y] - 1);
    cout << ans;
    return 0;
}

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 492 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 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 13 ms 972 KB Output is correct
13 Correct 14 ms 1132 KB Output is correct
14 Correct 18 ms 1388 KB Output is correct
15 Correct 211 ms 6252 KB Output is correct
16 Correct 221 ms 6508 KB Output is correct
17 Correct 209 ms 6252 KB Output is correct
18 Correct 252 ms 6280 KB Output is correct
19 Correct 609 ms 8684 KB Output is correct
20 Correct 416 ms 8156 KB Output is correct
21 Correct 634 ms 8940 KB Output is correct
22 Correct 667 ms 8812 KB Output is correct