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Submission #976335

# Submission time Handle Problem Language Result Execution time Memory
976335 2024-05-06T12:44:55 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 254 ms 13068 KB 
#include "bits/stdc++.h"
using namespace std;
#define int long long
#define ll long long
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
#define sz size
#define fr front 
#define bc backn
#define pii pair<int,int>
#define all(x) x.begin() , x.end()
#define cmin(a, b) a = min(a , b)
#define cmax(a, b) a = max(a, b)
#define mems(arr , a) memset(arr , a , sizeof arr)
#define each(i , arr) for(auto &i : arr)
const int MOD = 1e9 + 7;
const int INF = 1e18;

signed main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t;  
    t = 1;
    // cin >> t;
    while(t--){
    
        int n;  cin >> n;
        int x[n] , y[n];
        map<int , int> cntx , cnty;
        for(int i = 0; i < n; i++){
            cin >> x[i] >> y[i];
            cntx[x[i]]++ , cnty[y[i]]++;
        }
        int ans = 0;
        for(int i = 0; i < n; i++){
            ans += (cntx[x[i]]-1) * (cnty[y[i]]-1);
        }
        cout << ans << '\n';

    }


}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 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 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 5 ms 1368 KB Output is correct
14 Correct 8 ms 1880 KB Output is correct
15 Correct 86 ms 7252 KB Output is correct
16 Correct 92 ms 7888 KB Output is correct
17 Correct 85 ms 7312 KB Output is correct
18 Correct 85 ms 7252 KB Output is correct
19 Correct 242 ms 12124 KB Output is correct
20 Correct 172 ms 10216 KB Output is correct
21 Correct 251 ms 12908 KB Output is correct
22 Correct 254 ms 13068 KB Output is correct