oj.uz

Submission #643773

# Submission time Handle Problem Language Result Execution time Memory
643773 2022-09-23T02:26:20 Z lunchbox1 Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 130 ms 1364 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 0 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 1236 KB Output is correct
6 Correct 10 ms 1224 KB Output is correct
7 Correct 32 ms 1236 KB Output is correct
8 Correct 69 ms 1292 KB Output is correct
9 Correct 119 ms 1236 KB Output is correct
10 Correct 61 ms 1296 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 1236 KB Output is correct
6 Correct 10 ms 1224 KB Output is correct
7 Correct 32 ms 1236 KB Output is correct
8 Correct 69 ms 1292 KB Output is correct
9 Correct 119 ms 1236 KB Output is correct
10 Correct 61 ms 1296 KB Output is correct
11 Correct 0 ms 328 KB Output is correct
12 Correct 12 ms 1316 KB Output is correct
13 Correct 14 ms 1364 KB Output is correct
14 Correct 14 ms 1236 KB Output is correct
15 Correct 61 ms 1236 KB Output is correct
16 Correct 63 ms 1296 KB Output is correct
17 Correct 61 ms 1296 KB Output is correct
18 Correct 119 ms 1300 KB Output is correct
19 Correct 121 ms 1292 KB Output is correct
20 Correct 120 ms 1296 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 328 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 328 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 328 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 0 ms 340 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 328 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 328 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 0 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 456 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 456 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 2 ms 468 KB Output is correct
50 Correct 1 ms 468 KB Output is correct
51 Correct 2 ms 456 KB Output is correct
52 Correct 2 ms 468 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 456 KB Output is correct
58 Correct 1 ms 468 KB Output is correct
59 Correct 2 ms 468 KB Output is correct
60 Correct 1 ms 456 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 1236 KB Output is correct
2 Correct 124 ms 1228 KB Output is correct
3 Correct 124 ms 1292 KB Output is correct
4 Correct 124 ms 1224 KB Output is correct
5 Correct 126 ms 1236 KB Output is correct
6 Correct 123 ms 1296 KB Output is correct
7 Correct 125 ms 1292 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 1236 KB Output is correct
6 Correct 10 ms 1224 KB Output is correct
7 Correct 32 ms 1236 KB Output is correct
8 Correct 69 ms 1292 KB Output is correct
9 Correct 119 ms 1236 KB Output is correct
10 Correct 61 ms 1296 KB Output is correct
11 Correct 0 ms 328 KB Output is correct
12 Correct 12 ms 1316 KB Output is correct
13 Correct 14 ms 1364 KB Output is correct
14 Correct 14 ms 1236 KB Output is correct
15 Correct 61 ms 1236 KB Output is correct
16 Correct 63 ms 1296 KB Output is correct
17 Correct 61 ms 1296 KB Output is correct
18 Correct 119 ms 1300 KB Output is correct
19 Correct 121 ms 1292 KB Output is correct
20 Correct 120 ms 1296 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 324 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 324 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 328 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 320 KB Output is correct
53 Correct 0 ms 340 KB Output is correct
54 Correct 0 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 0 ms 332 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 0 ms 340 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 1 ms 456 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 1 ms 456 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 2 ms 468 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 2 ms 456 KB Output is correct
72 Correct 2 ms 468 KB Output is correct
73 Correct 1 ms 460 KB Output is correct
74 Correct 1 ms 468 KB Output is correct
75 Correct 1 ms 468 KB Output is correct
76 Correct 1 ms 468 KB Output is correct
77 Correct 1 ms 456 KB Output is correct
78 Correct 1 ms 468 KB Output is correct
79 Correct 2 ms 468 KB Output is correct
80 Correct 1 ms 456 KB Output is correct
81 Correct 130 ms 1236 KB Output is correct
82 Correct 124 ms 1228 KB Output is correct
83 Correct 124 ms 1292 KB Output is correct
84 Correct 124 ms 1224 KB Output is correct
85 Correct 126 ms 1236 KB Output is correct
86 Correct 123 ms 1296 KB Output is correct
87 Correct 125 ms 1292 KB Output is correct
88 Correct 7 ms 1236 KB Output is correct
89 Correct 7 ms 1236 KB Output is correct
90 Correct 13 ms 1316 KB Output is correct
91 Correct 12 ms 1228 KB Output is correct
92 Correct 35 ms 1236 KB Output is correct
93 Correct 37 ms 1236 KB Output is correct
94 Correct 72 ms 1236 KB Output is correct
95 Correct 72 ms 1220 KB Output is correct
96 Correct 101 ms 1292 KB Output is correct
97 Correct 100 ms 1236 KB Output is correct
98 Correct 70 ms 1300 KB Output is correct
99 Correct 62 ms 1296 KB Output is correct
100 Correct 66 ms 1296 KB Output is correct
101 Correct 63 ms 1304 KB Output is correct
102 Correct 63 ms 1236 KB Output is correct
103 Correct 61 ms 1236 KB Output is correct
104 Correct 63 ms 1332 KB Output is correct
105 Correct 59 ms 1296 KB Output is correct