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Submission #333888

# Submission time Handle Problem Language Result Execution time Memory
333888 2020-12-08T02:10:31 Z BY_KUTBILIM Star triangles (IZhO11_triangle) C++14
100 / 100
 375 ms 6252 KB 
/** @BY_KUTBILIM **/
#include <bits/stdc++.h>
using namespace std;

#define ff first
#define ss second
#define pb push_back
#define ll long long

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie();

    int n;
    cin >> n;
    int x[n], y[n];
    map<int,int> ox, oy;
    for(int i = 0; i < n; i++){
        cin >> x[i] >> y[i];
        ox[x[i]]++;
        oy[y[i]]++;
    }
    ll ans = 0;
    for(int i = 0; i < n; i++){
        ans += 1LL * (ox[x[i]] - 1) * (oy[y[i]] - 1);
    }
    cout << ans << endl;
    
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 7 ms 1004 KB Output is correct
13 Correct 7 ms 1132 KB Output is correct
14 Correct 13 ms 1388 KB Output is correct
15 Correct 122 ms 4460 KB Output is correct
16 Correct 135 ms 4588 KB Output is correct
17 Correct 121 ms 4460 KB Output is correct
18 Correct 119 ms 4460 KB Output is correct
19 Correct 344 ms 5996 KB Output is correct
20 Correct 245 ms 5356 KB Output is correct
21 Correct 369 ms 6124 KB Output is correct
22 Correct 375 ms 6252 KB Output is correct