oj.uz

Submission #872308

# Submission time Handle Problem Language Result Execution time Memory
872308 2023-11-12T17:40:06 Z MilosMilutinovic Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 128 ms 712 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, k;
  cin >> n >> k;
  vector<int> a(n);
  vector<int> b(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> b[i];
    if (b[i] == -1) {
      b[i] = (int) 1e9;
   }
  }
  vector<int> order(n);
  iota(order.begin(), order.end(), 0);
  sort(order.begin(), order.end(), [&](int i, int j) {
    if (b[i] != b[j]) {
      return b[i] < b[j];
    } else {
      return a[i] < a[j];
    }
  });
  vector<int> new_a(n);
  vector<int> new_b(n);
  for (int i = 0; i < n; i++) {
    new_a[i] = a[order[i]];
    new_b[i] = b[order[i]];
  }
  a = new_a;
  b = new_b;
  const double inf = 1e9;
  double ans = inf;
  for (int s = 0; s <= k; s++) {
    vector<double> dp(n + 1, inf);
    dp[0] = 0;
    for (int i = 0; i < n; i++) {
      vector<double> new_dp(n + 1, inf);
      for (int j = 0; j <= min(k - s, i); j++) {
        if (i - j < s) {
          new_dp[j] = min(new_dp[j], dp[j] + (double) (b[i] + 0.000) / (double) (i - j + 1));
        } else {
          new_dp[j] = min(new_dp[j], dp[j]);
        }
        new_dp[j + 1] = min(new_dp[j + 1], dp[j] + (double) (a[i] + 0.000) / (double) (s + 1));
      }
      swap(dp, new_dp);
      if (i + 1 >= k) {
        ans = min(ans, dp[k - s]);
      }
    }
  }
  cout << fixed << setprecision(3) << ans << '\n';
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 6 ms 344 KB Output is correct
6 Correct 18 ms 348 KB Output is correct
7 Correct 44 ms 348 KB Output is correct
8 Correct 78 ms 456 KB Output is correct
9 Correct 122 ms 348 KB Output is correct
10 Correct 70 ms 344 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 6 ms 344 KB Output is correct
6 Correct 18 ms 348 KB Output is correct
7 Correct 44 ms 348 KB Output is correct
8 Correct 78 ms 456 KB Output is correct
9 Correct 122 ms 348 KB Output is correct
10 Correct 70 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 22 ms 348 KB Output is correct
13 Correct 22 ms 348 KB Output is correct
14 Correct 23 ms 348 KB Output is correct
15 Correct 71 ms 452 KB Output is correct
16 Correct 71 ms 348 KB Output is correct
17 Correct 74 ms 452 KB Output is correct
18 Correct 121 ms 344 KB Output is correct
19 Correct 124 ms 456 KB Output is correct
20 Correct 120 ms 344 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 452 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 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 0 ms 348 KB Output is correct
2 Correct 0 ms 452 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 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 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 604 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 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 0 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 0 ms 344 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 452 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 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 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 604 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 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 0 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 0 ms 344 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 600 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 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 1 ms 348 KB Output is correct
52 Correct 2 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 456 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 1 ms 456 KB Output is correct
59 Correct 1 ms 712 KB Output is correct
60 Correct 1 ms 460 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 452 KB Output is correct
2 Correct 122 ms 460 KB Output is correct
3 Correct 123 ms 452 KB Output is correct
4 Correct 120 ms 456 KB Output is correct
5 Correct 128 ms 452 KB Output is correct
6 Correct 122 ms 352 KB Output is correct
7 Correct 120 ms 344 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 6 ms 344 KB Output is correct
6 Correct 18 ms 348 KB Output is correct
7 Correct 44 ms 348 KB Output is correct
8 Correct 78 ms 456 KB Output is correct
9 Correct 122 ms 348 KB Output is correct
10 Correct 70 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 22 ms 348 KB Output is correct
13 Correct 22 ms 348 KB Output is correct
14 Correct 23 ms 348 KB Output is correct
15 Correct 71 ms 452 KB Output is correct
16 Correct 71 ms 348 KB Output is correct
17 Correct 74 ms 452 KB Output is correct
18 Correct 121 ms 344 KB Output is correct
19 Correct 124 ms 456 KB Output is correct
20 Correct 120 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 452 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 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 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 344 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 604 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 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 348 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 1 ms 600 KB Output is correct
67 Correct 1 ms 348 KB Output is correct
68 Correct 1 ms 348 KB Output is correct
69 Correct 1 ms 348 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Correct 2 ms 348 KB Output is correct
73 Correct 1 ms 348 KB Output is correct
74 Correct 1 ms 348 KB Output is correct
75 Correct 1 ms 456 KB Output is correct
76 Correct 1 ms 344 KB Output is correct
77 Correct 1 ms 348 KB Output is correct
78 Correct 1 ms 456 KB Output is correct
79 Correct 1 ms 712 KB Output is correct
80 Correct 1 ms 460 KB Output is correct
81 Correct 128 ms 452 KB Output is correct
82 Correct 122 ms 460 KB Output is correct
83 Correct 123 ms 452 KB Output is correct
84 Correct 120 ms 456 KB Output is correct
85 Correct 128 ms 452 KB Output is correct
86 Correct 122 ms 352 KB Output is correct
87 Correct 120 ms 344 KB Output is correct
88 Correct 6 ms 552 KB Output is correct
89 Correct 6 ms 348 KB Output is correct
90 Correct 23 ms 476 KB Output is correct
91 Correct 18 ms 348 KB Output is correct
92 Correct 44 ms 452 KB Output is correct
93 Correct 46 ms 448 KB Output is correct
94 Correct 77 ms 344 KB Output is correct
95 Correct 78 ms 348 KB Output is correct
96 Correct 102 ms 348 KB Output is correct
97 Correct 106 ms 452 KB Output is correct
98 Correct 71 ms 452 KB Output is correct
99 Correct 71 ms 448 KB Output is correct
100 Correct 70 ms 344 KB Output is correct
101 Correct 71 ms 348 KB Output is correct
102 Correct 71 ms 344 KB Output is correct
103 Correct 71 ms 348 KB Output is correct
104 Correct 91 ms 452 KB Output is correct
105 Correct 71 ms 344 KB Output is correct