oj.uz

Submission #531749

# Submission time Handle Problem Language Result Execution time Memory
531749 2022-03-01T11:27:03 Z MedalistSlayer Star triangles (IZhO11_triangle) C++14
100 / 100
 332 ms 10120 KB 
/*
    Does he have IGM on CF?
    -neko_nyaa
*/
#include <bits/stdc++.h>
using namespace std;
//constant
const int mod=1e9+7;
const long long mod2=998244353LL;
const long long inf=(long long)1e18;
 
//define
#define PB push_back
#define MP make_pair
#define pi acos(-1)
#define int long long
 
//typedef
typedef long long ll;
typedef pair<int,int> pii;
typedef map<int,int> mii;
typedef map<string,int> msi;
typedef set<int> SI;
typedef priority_queue<int> pqi;


signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    //freopen("triangles.in", "r", stdin);
    //freopen("triangles.out", "w", stdout);
    int n;
    cin >> n;
    int x[n],y[n];
    map<int,int> x1,y1;
    for(int i=0;i<n;i++)
    {
        cin >> x[i] >> y[i];
        x1[x[i]]++;
        y1[y[i]]++;
    }
    int ans=0;
    for(int i=0;i<n;i++)
    {
        ans+=(x1[x[i]]-1)*(y1[y[i]]-1);
    }
    cout << ans << '\n';

    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 312 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 8 ms 1228 KB Output is correct
13 Correct 6 ms 1240 KB Output is correct
14 Correct 9 ms 1764 KB Output is correct
15 Correct 102 ms 6656 KB Output is correct
16 Correct 111 ms 6812 KB Output is correct
17 Correct 105 ms 6664 KB Output is correct
18 Correct 113 ms 6628 KB Output is correct
19 Correct 264 ms 9560 KB Output is correct
20 Correct 238 ms 8520 KB Output is correct
21 Correct 307 ms 10120 KB Output is correct
22 Correct 332 ms 10116 KB Output is correct