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Submission #868102

# Submission time Handle Problem Language Result Execution time Memory
868102 2023-10-30T12:34:10 Z 12345678 Star triangles (IZhO11_triangle) C++17
100 / 100
 248 ms 12124 KB 
#include <bits/stdc++.h>

using namespace std;

long long n, ans;
map<int, int> x, y;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    vector<pair<int, int>> v(n);
    for (int i=0; i<n; i++) cin>>v[i].first>>v[i].second, x[v[i].first]++, y[v[i].second]++;
    for (int i=0; i<n; i++) ans+=(x[v[i].first]-1)*(y[v[i].second]-1);
    cout<<ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 0 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 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1112 KB Output is correct
13 Correct 5 ms 1136 KB Output is correct
14 Correct 9 ms 1372 KB Output is correct
15 Correct 80 ms 6228 KB Output is correct
16 Correct 96 ms 6516 KB Output is correct
17 Correct 88 ms 6292 KB Output is correct
18 Correct 86 ms 6224 KB Output is correct
19 Correct 235 ms 11600 KB Output is correct
20 Correct 164 ms 9284 KB Output is correct
21 Correct 231 ms 12124 KB Output is correct
22 Correct 248 ms 12064 KB Output is correct