답안 #691301

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
691301	2023-01-31T04:46:38 Z	yaufung	Let's Win the Election (JOI22_ho_t3)	C++17	100 / 100	457 ms	2752 KB

Main

#include <bits/stdc++.h>
using namespace std;

double solve(int n, int k, vector<pair<int, int>> &a, int totalB) {
    vector<vector<double>> dp(n + 1, vector<double>(n + 1, 1e9));
    dp[0][0] = 0;
    for (int i = 1; i <= n; i++) {
        for (int As = 0; As <= min(i - 1, k - totalB); As++) {
            int Bs = min(totalB, i - 1 - As);
            if (As < k - totalB) {
                double d = a[i].first;
                dp[i][As + 1] = min(dp[i][As + 1], dp[i - 1][As] + d / (totalB + 1));
            }
            if (Bs < totalB) {
                double d = a[i].second;
                dp[i][As] = min(dp[i][As], dp[i - 1][As] + d / (Bs + 1));
            }
            else dp[i][As] = min(dp[i][As], dp[i - 1][As]);
        }
    }
    return dp[n][k - totalB];
}

int main() {
    ios::sync_with_stdio(false);
    int n, k;
    cin >> n >> k;
    vector<pair<int, int>> a(n + 1, {0, 0});
    for (int i = 1; i <= n; i++) {
        cin >> a[i].second >> a[i].first;
        if (a[i].first == -1) a[i].first = 1e9;
    }
    sort(a.begin(), a.end());
    for (int i = 1; i <= n; i++) {
        swap(a[i].first, a[i].second);
    }
    double ans = 1e9;
    for (int i = 0; i <= k; i++) {
        ans = min(ans, solve(n, k, a, i));
    }
    cout << setprecision(10) << ans << endl;
    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	31 ms	2308 KB	Output is correct
6	Correct	78 ms	2412 KB	Output is correct
7	Correct	210 ms	2308 KB	Output is correct
8	Correct	302 ms	2500 KB	Output is correct
9	Correct	420 ms	2672 KB	Output is correct
10	Correct	264 ms	2752 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	31 ms	2308 KB	Output is correct
6	Correct	78 ms	2412 KB	Output is correct
7	Correct	210 ms	2308 KB	Output is correct
8	Correct	302 ms	2500 KB	Output is correct
9	Correct	420 ms	2672 KB	Output is correct
10	Correct	264 ms	2752 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	119 ms	2456 KB	Output is correct
13	Correct	103 ms	2656 KB	Output is correct
14	Correct	103 ms	2416 KB	Output is correct
15	Correct	266 ms	2500 KB	Output is correct
16	Correct	282 ms	2544 KB	Output is correct
17	Correct	254 ms	2668 KB	Output is correct
18	Correct	414 ms	2476 KB	Output is correct
19	Correct	417 ms	2596 KB	Output is correct
20	Correct	424 ms	2568 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct

Subtask #5
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	340 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	2 ms	340 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	2 ms	340 KB	Output is correct
50	Correct	2 ms	340 KB	Output is correct
51	Correct	2 ms	340 KB	Output is correct
52	Correct	2 ms	340 KB	Output is correct
53	Correct	2 ms	340 KB	Output is correct
54	Correct	1 ms	340 KB	Output is correct
55	Correct	1 ms	340 KB	Output is correct
56	Correct	1 ms	340 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	1 ms	340 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	340 KB	Output is correct

Subtask #6
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	446 ms	2516 KB	Output is correct
2	Correct	457 ms	2624 KB	Output is correct
3	Correct	420 ms	2352 KB	Output is correct
4	Correct	400 ms	2488 KB	Output is correct
5	Correct	413 ms	2528 KB	Output is correct
6	Correct	407 ms	2628 KB	Output is correct
7	Correct	446 ms	2420 KB	Output is correct

Subtask #7
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	31 ms	2308 KB	Output is correct
6	Correct	78 ms	2412 KB	Output is correct
7	Correct	210 ms	2308 KB	Output is correct
8	Correct	302 ms	2500 KB	Output is correct
9	Correct	420 ms	2672 KB	Output is correct
10	Correct	264 ms	2752 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	119 ms	2456 KB	Output is correct
13	Correct	103 ms	2656 KB	Output is correct
14	Correct	103 ms	2416 KB	Output is correct
15	Correct	266 ms	2500 KB	Output is correct
16	Correct	282 ms	2544 KB	Output is correct
17	Correct	254 ms	2668 KB	Output is correct
18	Correct	414 ms	2476 KB	Output is correct
19	Correct	417 ms	2596 KB	Output is correct
20	Correct	424 ms	2568 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	1 ms	212 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	0 ms	212 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	0 ms	212 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	0 ms	212 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	0 ms	340 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	1 ms	340 KB	Output is correct
64	Correct	1 ms	340 KB	Output is correct
65	Correct	1 ms	340 KB	Output is correct
66	Correct	1 ms	340 KB	Output is correct
67	Correct	2 ms	340 KB	Output is correct
68	Correct	1 ms	340 KB	Output is correct
69	Correct	2 ms	340 KB	Output is correct
70	Correct	2 ms	340 KB	Output is correct
71	Correct	2 ms	340 KB	Output is correct
72	Correct	2 ms	340 KB	Output is correct
73	Correct	2 ms	340 KB	Output is correct
74	Correct	1 ms	340 KB	Output is correct
75	Correct	1 ms	340 KB	Output is correct
76	Correct	1 ms	340 KB	Output is correct
77	Correct	1 ms	340 KB	Output is correct
78	Correct	1 ms	340 KB	Output is correct
79	Correct	1 ms	340 KB	Output is correct
80	Correct	1 ms	340 KB	Output is correct
81	Correct	446 ms	2516 KB	Output is correct
82	Correct	457 ms	2624 KB	Output is correct
83	Correct	420 ms	2352 KB	Output is correct
84	Correct	400 ms	2488 KB	Output is correct
85	Correct	413 ms	2528 KB	Output is correct
86	Correct	407 ms	2628 KB	Output is correct
87	Correct	446 ms	2420 KB	Output is correct
88	Correct	31 ms	2484 KB	Output is correct
89	Correct	31 ms	2424 KB	Output is correct
90	Correct	82 ms	2516 KB	Output is correct
91	Correct	90 ms	2472 KB	Output is correct
92	Correct	171 ms	2492 KB	Output is correct
93	Correct	188 ms	2484 KB	Output is correct
94	Correct	290 ms	2428 KB	Output is correct
95	Correct	314 ms	2348 KB	Output is correct
96	Correct	354 ms	2492 KB	Output is correct
97	Correct	357 ms	2500 KB	Output is correct
98	Correct	295 ms	2496 KB	Output is correct
99	Correct	277 ms	2524 KB	Output is correct
100	Correct	264 ms	2636 KB	Output is correct
101	Correct	266 ms	2436 KB	Output is correct
102	Correct	281 ms	2724 KB	Output is correct
103	Correct	282 ms	2664 KB	Output is correct
104	Correct	280 ms	2572 KB	Output is correct
105	Correct	257 ms	2468 KB	Output is correct

답안 #691301

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