oj.uz

Submission #894220

# Submission time Handle Problem Language Result Execution time Memory
894220 2023-12-28T02:57:51 Z box Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 135 ms 1448 KB 
#include <bits/stdc++.h>
using namespace std;
 
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 0
#endif
 
const int N = 500;
const double INF = 1e18;
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  int n, k;
  cin >> n >> k;
  static array<int, 2> p[N];
  for (int i = 0; i < n; i++) {
    int a, b;
    cin >> a >> b;
    if (b == -1) b = 1e9;
    p[i] = {b, a};
  }
  sort(p, p + n);
  static int g[N][N + 1];
  for (int i = 0; i < n; i++) {
    static int t[N];
    for (int j = i; j < n; j++) t[j - i] = p[j][1];
    sort(t, t + n - i);
    g[i][0] = 0;
    for (int j = 1; j <= n - i; j++) g[i][j] = g[i][j - 1] + t[j - 1];
  }
  double ans = g[0][k];
  for (int t = 0; t <= k; t++) {
    static double f[N + 1];
    for (int i = 0; i <= t; i++) f[i] = INF;
    f[0] = 0;
    for (int i = 0; i < n; i++) {
      for (int j = t; j >= 0; j--)
        f[j] = min(f[j] + (double)p[i][1] / (t + 1),
                   j == 0 ? INF : f[j - 1] + (double)p[i][0] / j);
      if (k - i - 1 >= 0)
        ans = min(ans, f[t] + (double)g[i + 1][k - i - 1] / (t + 1));
    }
  }
  cout << fixed << setprecision(12) << ans << '\n';
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 3 ms 1368 KB Output is correct
6 Correct 8 ms 1372 KB Output is correct
7 Correct 26 ms 1372 KB Output is correct
8 Correct 58 ms 1428 KB Output is correct
9 Correct 99 ms 1424 KB Output is correct
10 Correct 63 ms 1372 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 3 ms 1368 KB Output is correct
6 Correct 8 ms 1372 KB Output is correct
7 Correct 26 ms 1372 KB Output is correct
8 Correct 58 ms 1428 KB Output is correct
9 Correct 99 ms 1424 KB Output is correct
10 Correct 63 ms 1372 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 11 ms 1372 KB Output is correct
13 Correct 15 ms 1372 KB Output is correct
14 Correct 15 ms 1372 KB Output is correct
15 Correct 51 ms 1372 KB Output is correct
16 Correct 59 ms 1372 KB Output is correct
17 Correct 51 ms 1372 KB Output is correct
18 Correct 99 ms 1424 KB Output is correct
19 Correct 99 ms 1432 KB Output is correct
20 Correct 104 ms 1372 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 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 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 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 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 500 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 600 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 1 ms 348 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 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 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 500 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 600 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 1 ms 604 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 604 KB Output is correct
53 Correct 1 ms 600 KB Output is correct
54 Correct 1 ms 616 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 464 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 600 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 111 ms 1436 KB Output is correct
2 Correct 101 ms 1432 KB Output is correct
3 Correct 105 ms 1428 KB Output is correct
4 Correct 135 ms 1428 KB Output is correct
5 Correct 107 ms 1428 KB Output is correct
6 Correct 101 ms 1424 KB Output is correct
7 Correct 103 ms 1428 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 3 ms 1368 KB Output is correct
6 Correct 8 ms 1372 KB Output is correct
7 Correct 26 ms 1372 KB Output is correct
8 Correct 58 ms 1428 KB Output is correct
9 Correct 99 ms 1424 KB Output is correct
10 Correct 63 ms 1372 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 11 ms 1372 KB Output is correct
13 Correct 15 ms 1372 KB Output is correct
14 Correct 15 ms 1372 KB Output is correct
15 Correct 51 ms 1372 KB Output is correct
16 Correct 59 ms 1372 KB Output is correct
17 Correct 51 ms 1372 KB Output is correct
18 Correct 99 ms 1424 KB Output is correct
19 Correct 99 ms 1432 KB Output is correct
20 Correct 104 ms 1372 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 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 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 500 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 600 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 1 ms 604 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 604 KB Output is correct
64 Correct 1 ms 604 KB Output is correct
65 Correct 1 ms 604 KB Output is correct
66 Correct 1 ms 604 KB Output is correct
67 Correct 1 ms 604 KB Output is correct
68 Correct 1 ms 604 KB Output is correct
69 Correct 1 ms 604 KB Output is correct
70 Correct 1 ms 604 KB Output is correct
71 Correct 1 ms 604 KB Output is correct
72 Correct 1 ms 604 KB Output is correct
73 Correct 1 ms 600 KB Output is correct
74 Correct 1 ms 616 KB Output is correct
75 Correct 1 ms 604 KB Output is correct
76 Correct 1 ms 464 KB Output is correct
77 Correct 1 ms 604 KB Output is correct
78 Correct 1 ms 600 KB Output is correct
79 Correct 1 ms 604 KB Output is correct
80 Correct 1 ms 604 KB Output is correct
81 Correct 111 ms 1436 KB Output is correct
82 Correct 101 ms 1432 KB Output is correct
83 Correct 105 ms 1428 KB Output is correct
84 Correct 135 ms 1428 KB Output is correct
85 Correct 107 ms 1428 KB Output is correct
86 Correct 101 ms 1424 KB Output is correct
87 Correct 103 ms 1428 KB Output is correct
88 Correct 6 ms 1372 KB Output is correct
89 Correct 6 ms 1368 KB Output is correct
90 Correct 11 ms 1320 KB Output is correct
91 Correct 13 ms 1448 KB Output is correct
92 Correct 31 ms 1372 KB Output is correct
93 Correct 30 ms 1372 KB Output is correct
94 Correct 63 ms 1372 KB Output is correct
95 Correct 59 ms 1428 KB Output is correct
96 Correct 90 ms 1372 KB Output is correct
97 Correct 86 ms 1424 KB Output is correct
98 Correct 52 ms 1432 KB Output is correct
99 Correct 53 ms 1372 KB Output is correct
100 Correct 62 ms 1432 KB Output is correct
101 Correct 52 ms 1428 KB Output is correct
102 Correct 58 ms 1428 KB Output is correct
103 Correct 52 ms 1372 KB Output is correct
104 Correct 66 ms 1424 KB Output is correct
105 Correct 58 ms 1372 KB Output is correct