oj.uz

Submission #724050

# Submission time Handle Problem Language Result Execution time Memory
724050 2023-04-14T16:14:52 Z groshi Star triangles (IZhO11_triangle) C++17
100 / 100
 373 ms 15576 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
map<int,int> mapka1,mapka2;
int t[400000][2];
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n,x,y;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>x>>y;
        mapka1[x]++;
        mapka2[y]++;
        t[i][0]=x;
        t[i][1]=y;
    }
    int wynik=0;
    for(int i=1;i<=n;i++)
    {
        int a=mapka1[t[i][0]];
        int b=mapka2[t[i][1]];
        wynik+=(a-1)*(b-1);
    }
    cout<<wynik;
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 380 KB Output is correct
12 Correct 8 ms 1256 KB Output is correct
13 Correct 6 ms 1236 KB Output is correct
14 Correct 11 ms 1752 KB Output is correct
15 Correct 113 ms 8028 KB Output is correct
16 Correct 113 ms 8332 KB Output is correct
17 Correct 109 ms 7840 KB Output is correct
18 Correct 109 ms 7940 KB Output is correct
19 Correct 373 ms 14724 KB Output is correct
20 Correct 214 ms 11736 KB Output is correct
21 Correct 317 ms 15576 KB Output is correct
22 Correct 331 ms 15572 KB Output is correct