답안 #1049560

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1049560	2024-08-08T23:10:55 Z	ymm	Let's Win the Election (JOI22_ho_t3)	C++17	100 / 100	714 ms	4524 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 int N = 512;
const ll inf = 1e15;
double dp1_[N][N], dp2_[N][N];
auto dp1 = dp1_, dp2 = dp2_;
pll a[N];
int n;

#define SMIN(x, y) ((x) = min((x), (y)))

double calc(ll col_tar, ll tot_tar)
{
	dp1[0][0] = 0;
	Loop (pos,0,n) {
		Loop (col,0,pos+1) Loop (tot,col,pos+1)
			dp2[col][tot] = dp1[col][tot];
		Loop (col,0,pos+2)
			dp2[col][pos+1] = inf;
		if (a[pos].first != inf) {
			Loop (col,0,pos+1) Loop (tot,col,pos+1)
				SMIN(dp2[col+1][tot+1], dp1[col][tot] + (double)a[pos].first / (col + 1));
		}
		Loop (col,0,pos+1) Loop (tot,col,pos+1)
			SMIN(dp2[col][tot+1], dp1[col][tot] + (double)a[pos].second / (col_tar + 1));
		swap(dp1, dp2);
	}
	return dp1[col_tar][tot_tar];
}

int main()
{
	cin.tie(0) -> sync_with_stdio(false);
	int k;
	cin >> n >> k;
	Loop (i,0,n) {
		cin >> a[i].second >> a[i].first;
		if (a[i].first == -1)
			a[i].first = inf;
	}
	sort(a, a + n);
	int l = 0, r = k-1;
	while (l < r) {
		int m = (l + r)/2;
		if (calc(m, k) > calc(m+1, k))
			l = m+1;
		else
			r = m;
	}
	cout << fixed << setprecision(9);
	cout << calc(l, k) << '\n';
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2392 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	290 ms	4504 KB	Output is correct
6	Correct	324 ms	4444 KB	Output is correct
7	Correct	365 ms	4444 KB	Output is correct
8	Correct	430 ms	4444 KB	Output is correct
9	Correct	427 ms	4444 KB	Output is correct
10	Correct	441 ms	4444 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2392 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	290 ms	4504 KB	Output is correct
6	Correct	324 ms	4444 KB	Output is correct
7	Correct	365 ms	4444 KB	Output is correct
8	Correct	430 ms	4444 KB	Output is correct
9	Correct	427 ms	4444 KB	Output is correct
10	Correct	441 ms	4444 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	538 ms	4444 KB	Output is correct
13	Correct	430 ms	4432 KB	Output is correct
14	Correct	370 ms	4508 KB	Output is correct
15	Correct	594 ms	4432 KB	Output is correct
16	Correct	422 ms	4444 KB	Output is correct
17	Correct	366 ms	4436 KB	Output is correct
18	Correct	615 ms	4504 KB	Output is correct
19	Correct	476 ms	4436 KB	Output is correct
20	Correct	418 ms	4444 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	0 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	0 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	0 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	0 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2508 KB	Output is correct
17	Correct	0 ms	2396 KB	Output is correct
18	Correct	1 ms	2392 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	0 ms	2512 KB	Output is correct
22	Correct	0 ms	2392 KB	Output is correct
23	Correct	0 ms	2396 KB	Output is correct
24	Correct	0 ms	2396 KB	Output is correct
25	Correct	0 ms	2396 KB	Output is correct
26	Correct	0 ms	2508 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	0 ms	2396 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	0 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	0 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	0 ms	2396 KB	Output is correct
36	Correct	0 ms	2396 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	0 ms	2396 KB	Output is correct
39	Correct	0 ms	2396 KB	Output is correct
40	Correct	0 ms	2396 KB	Output is correct

Subtask #5
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	0 ms	2396 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	0 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	0 ms	2396 KB	Output is correct
10	Correct	0 ms	2396 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	0 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2508 KB	Output is correct
17	Correct	0 ms	2396 KB	Output is correct
18	Correct	1 ms	2392 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	0 ms	2512 KB	Output is correct
22	Correct	0 ms	2392 KB	Output is correct
23	Correct	0 ms	2396 KB	Output is correct
24	Correct	0 ms	2396 KB	Output is correct
25	Correct	0 ms	2396 KB	Output is correct
26	Correct	0 ms	2508 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	0 ms	2396 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	0 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	0 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	0 ms	2396 KB	Output is correct
36	Correct	0 ms	2396 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	0 ms	2396 KB	Output is correct
39	Correct	0 ms	2396 KB	Output is correct
40	Correct	0 ms	2396 KB	Output is correct
41	Correct	5 ms	2904 KB	Output is correct
42	Correct	3 ms	2908 KB	Output is correct
43	Correct	4 ms	2908 KB	Output is correct
44	Correct	3 ms	2908 KB	Output is correct
45	Correct	5 ms	2904 KB	Output is correct
46	Correct	4 ms	2908 KB	Output is correct
47	Correct	5 ms	2908 KB	Output is correct
48	Correct	4 ms	2908 KB	Output is correct
49	Correct	5 ms	2908 KB	Output is correct
50	Correct	5 ms	2908 KB	Output is correct
51	Correct	4 ms	2908 KB	Output is correct
52	Correct	4 ms	2908 KB	Output is correct
53	Correct	4 ms	2764 KB	Output is correct
54	Correct	4 ms	2908 KB	Output is correct
55	Correct	6 ms	2904 KB	Output is correct
56	Correct	5 ms	2904 KB	Output is correct
57	Correct	5 ms	2904 KB	Output is correct
58	Correct	5 ms	2904 KB	Output is correct
59	Correct	4 ms	2920 KB	Output is correct
60	Correct	4 ms	2920 KB	Output is correct

Subtask #6
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	708 ms	4432 KB	Output is correct
2	Correct	676 ms	4360 KB	Output is correct
3	Correct	698 ms	4512 KB	Output is correct
4	Correct	680 ms	4432 KB	Output is correct
5	Correct	670 ms	4432 KB	Output is correct
6	Correct	693 ms	4512 KB	Output is correct
7	Correct	668 ms	4504 KB	Output is correct

Subtask #7
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	0 ms	2392 KB	Output is correct
3	Correct	0 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	290 ms	4504 KB	Output is correct
6	Correct	324 ms	4444 KB	Output is correct
7	Correct	365 ms	4444 KB	Output is correct
8	Correct	430 ms	4444 KB	Output is correct
9	Correct	427 ms	4444 KB	Output is correct
10	Correct	441 ms	4444 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	538 ms	4444 KB	Output is correct
13	Correct	430 ms	4432 KB	Output is correct
14	Correct	370 ms	4508 KB	Output is correct
15	Correct	594 ms	4432 KB	Output is correct
16	Correct	422 ms	4444 KB	Output is correct
17	Correct	366 ms	4436 KB	Output is correct
18	Correct	615 ms	4504 KB	Output is correct
19	Correct	476 ms	4436 KB	Output is correct
20	Correct	418 ms	4444 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	0 ms	2396 KB	Output is correct
23	Correct	0 ms	2396 KB	Output is correct
24	Correct	0 ms	2396 KB	Output is correct
25	Correct	1 ms	2396 KB	Output is correct
26	Correct	0 ms	2396 KB	Output is correct
27	Correct	0 ms	2396 KB	Output is correct
28	Correct	0 ms	2396 KB	Output is correct
29	Correct	0 ms	2396 KB	Output is correct
30	Correct	0 ms	2396 KB	Output is correct
31	Correct	0 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	0 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	0 ms	2396 KB	Output is correct
36	Correct	0 ms	2508 KB	Output is correct
37	Correct	0 ms	2396 KB	Output is correct
38	Correct	1 ms	2392 KB	Output is correct
39	Correct	0 ms	2396 KB	Output is correct
40	Correct	0 ms	2396 KB	Output is correct
41	Correct	0 ms	2512 KB	Output is correct
42	Correct	0 ms	2392 KB	Output is correct
43	Correct	0 ms	2396 KB	Output is correct
44	Correct	0 ms	2396 KB	Output is correct
45	Correct	0 ms	2396 KB	Output is correct
46	Correct	0 ms	2508 KB	Output is correct
47	Correct	1 ms	2396 KB	Output is correct
48	Correct	0 ms	2396 KB	Output is correct
49	Correct	1 ms	2392 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	0 ms	2396 KB	Output is correct
52	Correct	0 ms	2396 KB	Output is correct
53	Correct	0 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	0 ms	2396 KB	Output is correct
56	Correct	0 ms	2396 KB	Output is correct
57	Correct	0 ms	2396 KB	Output is correct
58	Correct	0 ms	2396 KB	Output is correct
59	Correct	0 ms	2396 KB	Output is correct
60	Correct	0 ms	2396 KB	Output is correct
61	Correct	5 ms	2904 KB	Output is correct
62	Correct	3 ms	2908 KB	Output is correct
63	Correct	4 ms	2908 KB	Output is correct
64	Correct	3 ms	2908 KB	Output is correct
65	Correct	5 ms	2904 KB	Output is correct
66	Correct	4 ms	2908 KB	Output is correct
67	Correct	5 ms	2908 KB	Output is correct
68	Correct	4 ms	2908 KB	Output is correct
69	Correct	5 ms	2908 KB	Output is correct
70	Correct	5 ms	2908 KB	Output is correct
71	Correct	4 ms	2908 KB	Output is correct
72	Correct	4 ms	2908 KB	Output is correct
73	Correct	4 ms	2764 KB	Output is correct
74	Correct	4 ms	2908 KB	Output is correct
75	Correct	6 ms	2904 KB	Output is correct
76	Correct	5 ms	2904 KB	Output is correct
77	Correct	5 ms	2904 KB	Output is correct
78	Correct	5 ms	2904 KB	Output is correct
79	Correct	4 ms	2920 KB	Output is correct
80	Correct	4 ms	2920 KB	Output is correct
81	Correct	708 ms	4432 KB	Output is correct
82	Correct	676 ms	4360 KB	Output is correct
83	Correct	698 ms	4512 KB	Output is correct
84	Correct	680 ms	4432 KB	Output is correct
85	Correct	670 ms	4432 KB	Output is correct
86	Correct	693 ms	4512 KB	Output is correct
87	Correct	668 ms	4504 KB	Output is correct
88	Correct	465 ms	4432 KB	Output is correct
89	Correct	497 ms	4432 KB	Output is correct
90	Correct	548 ms	4524 KB	Output is correct
91	Correct	525 ms	4292 KB	Output is correct
92	Correct	615 ms	4508 KB	Output is correct
93	Correct	609 ms	4508 KB	Output is correct
94	Correct	706 ms	4512 KB	Output is correct
95	Correct	693 ms	4436 KB	Output is correct
96	Correct	683 ms	4500 KB	Output is correct
97	Correct	673 ms	4512 KB	Output is correct
98	Correct	603 ms	4436 KB	Output is correct
99	Correct	616 ms	4504 KB	Output is correct
100	Correct	648 ms	4436 KB	Output is correct
101	Correct	672 ms	4432 KB	Output is correct
102	Correct	603 ms	4504 KB	Output is correct
103	Correct	714 ms	4432 KB	Output is correct
104	Correct	611 ms	4504 KB	Output is correct
105	Correct	695 ms	4504 KB	Output is correct

답안 #1049560

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 33.0 / 33.0

Subtask #6 11.0 / 11.0

Subtask #7 23.0 / 23.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
33.0 / 33.0

Subtask #6
11.0 / 11.0

Subtask #7
23.0 / 23.0