답안 #380970

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
380970	2021-03-23T21:25:06 Z	wind_reaper	Sure Bet (CEOI17_sure)	C++17	100 / 100	103 ms	3820 KB

sure

#include <bits/stdc++.h>

using namespace std;

int32_t main(){
	ios_base::sync_with_stdio(false); 
	cin.tie(NULL); 
	
	int n;
	cin >> n;

	vector<double> a(n+1), b(n+1);
	for(int i = 1; i <= n; i++){
		cin >> a[i] >> b[i];
	}

	sort(a.rbegin(), a.rend() - 1);
	sort(b.rbegin(), b.rend() - 1);

	double sa = 0, sb = 0, ans = 0;
	int ia = 1, ib = 1;
	for(int i = 1; i <= 2*n; i++){
		if(ia == n+1)
			sb += b[ib++];
		else if(ib == n+1)
			sa += a[ia++];
		else{
			if(sa > sb)
				sb += b[ib++];
			else sa += a[ia++];
		}
		ans = max(ans, min(sa, sb) - i);
	}

	cout << fixed << setprecision(4) << ans << '\n';
	return 0; 
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct

Subtask #2

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct

Subtask #3

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	87 ms	3308 KB	Output is correct
18	Correct	84 ms	3228 KB	Output is correct
19	Correct	84 ms	3228 KB	Output is correct
20	Correct	83 ms	3308 KB	Output is correct
21	Correct	90 ms	3692 KB	Output is correct
22	Correct	88 ms	3308 KB	Output is correct
23	Correct	85 ms	3308 KB	Output is correct
24	Correct	103 ms	3308 KB	Output is correct
25	Correct	91 ms	3308 KB	Output is correct
26	Correct	94 ms	3820 KB	Output is correct