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Submission #314266

# Submission time Handle Problem Language Result Execution time Memory
314266 2020-10-19T09:38:57 Z kshitij_sodani Star triangles (IZhO11_triangle) C++14
100 / 100
 431 ms 9208 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first 
#define b second
#define endl '\n' 
llo n;
llo aa[300001];
llo bb[300001];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n;
	map<llo,llo> ss;
	map<llo,llo> tt;
	for(llo i=0;i<n;i++){
		cin>>aa[i]>>bb[i];
		ss[aa[i]]++;
		tt[bb[i]]++;
	}
	llo ans=0;
	for(llo i=0;i<n;i++){
		ans+=(ss[aa[i]]-1)*(tt[bb[i]]-1);
	}
	cout<<ans<<endl;















	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 7 ms 1152 KB Output is correct
14 Correct 11 ms 1536 KB Output is correct
15 Correct 136 ms 5880 KB Output is correct
16 Correct 151 ms 6008 KB Output is correct
17 Correct 141 ms 5880 KB Output is correct
18 Correct 141 ms 5880 KB Output is correct
19 Correct 393 ms 8824 KB Output is correct
20 Correct 274 ms 7544 KB Output is correct
21 Correct 429 ms 9084 KB Output is correct
22 Correct 431 ms 9208 KB Output is correct