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Submission #975583

# Submission time Handle Problem Language Result Execution time Memory
975583 2024-05-05T14:00:11 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 236 ms 5852 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define AC ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define fs first
#define sc second
#define pb push_back


int N;
map<int, int> cntx, cnty;
ll ans;
int main() {   
    AC
    cin >> N ;
    int x[N], y[N];
    for(int i=0; i<N; i++){
        cin >> x[i] >> y[i];
        cntx[x[i]]++, cnty[y[i]]++;
    }
    for(int i=0; i<N; i++){
        ans += (ll)(cntx[x[i]]-1)*(ll)(cnty[y[i]]-1);
    }
    cout << ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 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 1 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 5 ms 860 KB Output is correct
13 Correct 5 ms 856 KB Output is correct
14 Correct 11 ms 1180 KB Output is correct
15 Correct 81 ms 4140 KB Output is correct
16 Correct 89 ms 4204 KB Output is correct
17 Correct 81 ms 4140 KB Output is correct
18 Correct 80 ms 3932 KB Output is correct
19 Correct 223 ms 5460 KB Output is correct
20 Correct 163 ms 5068 KB Output is correct
21 Correct 231 ms 5748 KB Output is correct
22 Correct 236 ms 5852 KB Output is correct