oj.uz

Submission #691288

# Submission time Handle Problem Language Result Execution time Memory
691288 2023-01-31T04:38:51 Z yaufung Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 501 ms 2760 KB 
#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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 30 ms 2304 KB Output is correct
6 Correct 84 ms 2428 KB Output is correct
7 Correct 189 ms 2508 KB Output is correct
8 Correct 272 ms 2296 KB Output is correct
9 Correct 415 ms 2760 KB Output is correct
10 Correct 263 ms 2572 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 30 ms 2304 KB Output is correct
6 Correct 84 ms 2428 KB Output is correct
7 Correct 189 ms 2508 KB Output is correct
8 Correct 272 ms 2296 KB Output is correct
9 Correct 415 ms 2760 KB Output is correct
10 Correct 263 ms 2572 KB Output is correct
11 Correct 0 ms 224 KB Output is correct
12 Correct 113 ms 2452 KB Output is correct
13 Correct 100 ms 2460 KB Output is correct
14 Correct 107 ms 2308 KB Output is correct
15 Correct 280 ms 2612 KB Output is correct
16 Correct 256 ms 2596 KB Output is correct
17 Correct 255 ms 2484 KB Output is correct
18 Correct 410 ms 2560 KB Output is correct
19 Correct 461 ms 2592 KB Output is correct
20 Correct 458 ms 2532 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 316 KB Output is correct
21 Correct 0 ms 320 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 0 ms 212 KB Output is correct
27 Correct 0 ms 320 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 320 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 316 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 1 ms 260 KB Output is correct
38 Correct 1 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

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 316 KB Output is correct
21 Correct 0 ms 320 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 0 ms 212 KB Output is correct
27 Correct 0 ms 320 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 320 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 316 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 1 ms 260 KB Output is correct
38 Correct 1 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 1 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 320 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 316 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 316 KB Output is correct
54 Correct 2 ms 340 KB Output is correct
55 Correct 1 ms 320 KB Output is correct
56 Correct 1 ms 328 KB Output is correct
57 Correct 2 ms 340 KB Output is correct
58 Correct 2 ms 320 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 324 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 399 ms 2512 KB Output is correct
2 Correct 390 ms 2468 KB Output is correct
3 Correct 402 ms 2436 KB Output is correct
4 Correct 435 ms 2560 KB Output is correct
5 Correct 407 ms 2604 KB Output is correct
6 Correct 501 ms 2524 KB Output is correct
7 Correct 406 ms 2564 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 30 ms 2304 KB Output is correct
6 Correct 84 ms 2428 KB Output is correct
7 Correct 189 ms 2508 KB Output is correct
8 Correct 272 ms 2296 KB Output is correct
9 Correct 415 ms 2760 KB Output is correct
10 Correct 263 ms 2572 KB Output is correct
11 Correct 0 ms 224 KB Output is correct
12 Correct 113 ms 2452 KB Output is correct
13 Correct 100 ms 2460 KB Output is correct
14 Correct 107 ms 2308 KB Output is correct
15 Correct 280 ms 2612 KB Output is correct
16 Correct 256 ms 2596 KB Output is correct
17 Correct 255 ms 2484 KB Output is correct
18 Correct 410 ms 2560 KB Output is correct
19 Correct 461 ms 2592 KB Output is correct
20 Correct 458 ms 2532 KB Output is correct
21 Correct 1 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 320 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 328 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 316 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 324 KB Output is correct
35 Correct 1 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 1 ms 212 KB Output is correct
40 Correct 0 ms 316 KB Output is correct
41 Correct 0 ms 320 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 0 ms 212 KB Output is correct
47 Correct 0 ms 320 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 316 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 0 ms 320 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 1 ms 316 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 1 ms 260 KB Output is correct
58 Correct 1 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 1 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 320 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 316 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 316 KB Output is correct
74 Correct 2 ms 340 KB Output is correct
75 Correct 1 ms 320 KB Output is correct
76 Correct 1 ms 328 KB Output is correct
77 Correct 2 ms 340 KB Output is correct
78 Correct 2 ms 320 KB Output is correct
79 Correct 1 ms 340 KB Output is correct
80 Correct 1 ms 324 KB Output is correct
81 Correct 399 ms 2512 KB Output is correct
82 Correct 390 ms 2468 KB Output is correct
83 Correct 402 ms 2436 KB Output is correct
84 Correct 435 ms 2560 KB Output is correct
85 Correct 407 ms 2604 KB Output is correct
86 Correct 501 ms 2524 KB Output is correct
87 Correct 406 ms 2564 KB Output is correct
88 Correct 31 ms 2456 KB Output is correct
89 Correct 31 ms 2432 KB Output is correct
90 Correct 94 ms 2436 KB Output is correct
91 Correct 100 ms 2636 KB Output is correct
92 Correct 174 ms 2484 KB Output is correct
93 Correct 184 ms 2516 KB Output is correct
94 Correct 353 ms 2472 KB Output is correct
95 Correct 286 ms 2512 KB Output is correct
96 Correct 392 ms 2716 KB Output is correct
97 Correct 344 ms 2504 KB Output is correct
98 Correct 290 ms 2496 KB Output is correct
99 Correct 255 ms 2516 KB Output is correct
100 Correct 266 ms 2648 KB Output is correct
101 Correct 319 ms 2612 KB Output is correct
102 Correct 260 ms 2464 KB Output is correct
103 Correct 275 ms 2564 KB Output is correct
104 Correct 253 ms 2476 KB Output is correct
105 Correct 284 ms 2476 KB Output is correct