oj.uz

Submission #691301

# Submission time Handle Problem Language Result Execution time Memory
691301 2023-01-31T04:46:38 Z yaufung Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 457 ms 2752 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 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

# 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 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

# 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 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

# 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 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

# 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 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

# Verdict Execution time Memory 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

# 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 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