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Submission #975535

# Submission time Handle Problem Language Result Execution time Memory
975535 2024-05-05T12:38:47 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 260 ms 9044 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define Foxfur ios_base::sync_with_stdio(0);cin.tie(NULL);

int32_t main()
{
Foxfur

    int n; cin >> n;
    int maxn = 3e5+5;

    map <int,int> jmlx;
    map <int, int> jmly;

    int arrx[maxn];
    int arry[maxn];

    for(int i=0; i<n; i++)
    {
        cin >> arrx[i] >> arry[i];
        jmlx[arrx[i]]++;
        jmly[arry[i]]++;
    }

    int ans=0;

    for(int i=0; i<n; i++)
    {
        ans += (jmlx[arrx[i]]-1) * (jmly[arry[i]]-1);
    }

    cout << ans << endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 5088 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 2 ms 5068 KB Output is correct
9 Correct 3 ms 4956 KB Output is correct
10 Correct 4 ms 4956 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 7 ms 5548 KB Output is correct
13 Correct 7 ms 5724 KB Output is correct
14 Correct 10 ms 6012 KB Output is correct
15 Correct 87 ms 8788 KB Output is correct
16 Correct 93 ms 9040 KB Output is correct
17 Correct 95 ms 9044 KB Output is correct
18 Correct 103 ms 9032 KB Output is correct
19 Correct 231 ms 9044 KB Output is correct
20 Correct 169 ms 9040 KB Output is correct
21 Correct 245 ms 9044 KB Output is correct
22 Correct 260 ms 9040 KB Output is correct