답안 #1049553

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1049553	2024-08-08T22:41:37 Z	ymm	Let's Win the Election (JOI22_ho_t3)	C++17	10 / 100	10 ms	472 KB

Main

#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const ll inf = 1e15;

int main()
{
	cin.tie(0) -> sync_with_stdio(false);
	int n, k;
	cin >> n >> k;
	vector<pll> a(n);
	Loop (i,0,n) {
		cin >> a[i].second >> a[i].first;
		if (a[i].first == -1)
			a[i].first = inf;
	}
	double ans = inf;
	Loop (cnt,0,k) {
		ll c = 1;
		double sum = 0;
		sort(a.begin(), a.end());
		if (cnt && a[cnt-1].first == inf)
			continue;
		Loop (i,0,cnt) {
			sum += (double)a[i].first / c;
			c++;
		}
		sort(a.begin() + cnt, a.end(), [](pll x, pll y) {
			return x.second < y.second;
		});
		Loop (i,cnt,k)
			sum += (double)a[i].second / c;
		ans = min(ans, sum);
	}
	cout << fixed << setprecision(9);
	cout << ans << '\n';
}

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	2 ms	348 KB	Output is correct
8	Correct	4 ms	468 KB	Output is correct
9	Correct	3 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct

Subtask #2

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	2 ms	348 KB	Output is correct
8	Correct	4 ms	468 KB	Output is correct
9	Correct	3 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	2 ms	348 KB	Output is correct
13	Correct	3 ms	348 KB	Output is correct
14	Correct	2 ms	460 KB	Output is correct
15	Correct	2 ms	348 KB	Output is correct
16	Correct	7 ms	468 KB	Output is correct
17	Correct	3 ms	348 KB	Output is correct
18	Correct	3 ms	348 KB	Output is correct
19	Correct	6 ms	472 KB	Output is correct
20	Correct	4 ms	344 KB	Output is correct

Subtask #3

0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	344 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #4

0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	344 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #5

0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Incorrect	0 ms	344 KB	Output isn't correct
10	Halted	0 ms	0 KB	-

Subtask #6

0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	10 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7

0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	2 ms	348 KB	Output is correct
8	Correct	4 ms	468 KB	Output is correct
9	Correct	3 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	2 ms	348 KB	Output is correct
13	Correct	3 ms	348 KB	Output is correct
14	Correct	2 ms	460 KB	Output is correct
15	Correct	2 ms	348 KB	Output is correct
16	Correct	7 ms	468 KB	Output is correct
17	Correct	3 ms	348 KB	Output is correct
18	Correct	3 ms	348 KB	Output is correct
19	Correct	6 ms	472 KB	Output is correct
20	Correct	4 ms	344 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Incorrect	0 ms	344 KB	Output isn't correct
30	Halted	0 ms	0 KB	-