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Submission #531750

# Submission time Handle Problem Language Result Execution time Memory
531750 2022-03-01T11:28:07 Z christinelynn Star triangles (IZhO11_triangle) C++17
100 / 100
 291 ms 9088 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 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 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 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 6 ms 972 KB Output is correct
13 Correct 6 ms 972 KB Output is correct
14 Correct 10 ms 1524 KB Output is correct
15 Correct 100 ms 5768 KB Output is correct
16 Correct 113 ms 5880 KB Output is correct
17 Correct 98 ms 5700 KB Output is correct
18 Correct 99 ms 5720 KB Output is correct
19 Correct 259 ms 8644 KB Output is correct
20 Correct 189 ms 7512 KB Output is correct
21 Correct 289 ms 9084 KB Output is correct
22 Correct 291 ms 9088 KB Output is correct