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Submission #975533

# Submission time Handle Problem Language Result Execution time Memory
975533 2024-05-05T12:36:43 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 249 ms 15684 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 += 1ll * (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 3 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 2 ms 5064 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 3 ms 4956 KB Output is correct
10 Correct 3 ms 4956 KB Output is correct
11 Correct 3 ms 5212 KB Output is correct
12 Correct 7 ms 5724 KB Output is correct
13 Correct 7 ms 5980 KB Output is correct
14 Correct 10 ms 6408 KB Output is correct
15 Correct 87 ms 11120 KB Output is correct
16 Correct 94 ms 11416 KB Output is correct
17 Correct 86 ms 11068 KB Output is correct
18 Correct 86 ms 11092 KB Output is correct
19 Correct 234 ms 15156 KB Output is correct
20 Correct 174 ms 13392 KB Output is correct
21 Correct 248 ms 15440 KB Output is correct
22 Correct 249 ms 15684 KB Output is correct