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Submission #676199

# Submission time Handle Problem Language Result Execution time Memory
676199 2022-12-29T19:54:54 Z Toxtaq Star triangles (IZhO11_triangle) C++17
0 / 100
 2000 ms 3948 KB 
#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;
    vector<pair<int, int>>p(n);
    map<int, int>X, Y;
    for(int i = 0;i < n;++i){
        cin >> p[i].second >> p[i].first;
        X[p[i].second]++;
        Y[p[i].first]++;
    }
    sort(p.begin(), p.end());
    int result = 0;
    for(int i = 0;i < n;++i){
        if(Y[p[i].first] < 2)continue;
        Y[p[i].first]--;
        for(int j = i + 1;j < n;++j){
            if(p[i].first == p[j].first)result += X[p[i].second] + X[p[j].second] - 2;
        }
    }
    cout << result;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 10 ms 852 KB Output is correct
13 Correct 705 ms 844 KB Output is correct
14 Correct 19 ms 1108 KB Output is correct
15 Execution timed out 2088 ms 3948 KB Time limit exceeded
16 Halted 0 ms 0 KB -