oj.uz

답안 #161997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
161997 2019-11-05T16:12:33 Z mosiashvililuka 별들과 삼각형 (IZhO11_triangle) C++14
100 / 100
 558 ms 15680 KB 
#include<bits/stdc++.h>
using namespace std;
long long a,b,c,d,e,pas;
pair <long long, long long> p[300009];
map <long long, long long> x,y;
int main(){
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin>>a;
	for(b=1; b<=a; b++){
		cin>>p[b].first>>p[b].second;
		x[p[b].first]++;
		y[p[b].second]++;
	}
	for(b=1; b<=a; b++){
		pas+=(x[p[b].first]-1)*(y[p[b].second]-1);
	}
	cout<<pas;
	return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 508 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 3 ms 392 KB Output is correct
11 Correct 15 ms 376 KB Output is correct
12 Correct 10 ms 1272 KB Output is correct
13 Correct 11 ms 1276 KB Output is correct
14 Correct 16 ms 1784 KB Output is correct
15 Correct 176 ms 8028 KB Output is correct
16 Correct 189 ms 8440 KB Output is correct
17 Correct 172 ms 7928 KB Output is correct
18 Correct 195 ms 8056 KB Output is correct
19 Correct 552 ms 14824 KB Output is correct
20 Correct 391 ms 11972 KB Output is correct
21 Correct 558 ms 15588 KB Output is correct
22 Correct 554 ms 15680 KB Output is correct