oj.uz

Submission #103411

# Submission time Handle Problem Language Result Execution time Memory
103411 2019-03-30T07:27:29 Z wxh010910 Rice Hub (IOI11_ricehub) C++17
100 / 100
 29 ms 2560 KB 
#include <bits/stdc++.h>
#include "ricehub.h"

using namespace std;

int besthub(int R, int L, int X[], long long B) {
  vector<long long> pref(R + 1);
  for (int i = 0; i < R; ++i) {
    pref[i + 1] = pref[i] + X[i];
  }
  auto check = [&](int len) {
    for (int l = 0, r = len; r <= R; ++l, ++r) {
      int m = (l + r) >> 1;
      if ((long long) (m - l) * X[m] - (pref[m] - pref[l]) + (pref[r] - pref[m]) - (long long) (r - m) * X[m] <= B) {
        return true;
      }
    }
    return false;
  };
  int l = 0, r = R;
  while (l < r) {
    int mid = (l + r + 1) >> 1;
    if (check(mid)) {
      l = mid;
    } else {
      r = mid - 1;
    }
  }
  return l;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 256 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 128 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 3 ms 256 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 128 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 17 ms 384 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 4 ms 512 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 4 ms 384 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 768 KB Output is correct
2 Correct 5 ms 676 KB Output is correct
3 Correct 16 ms 2560 KB Output is correct
4 Correct 17 ms 2560 KB Output is correct
5 Correct 12 ms 1260 KB Output is correct
6 Correct 9 ms 1280 KB Output is correct
7 Correct 15 ms 2304 KB Output is correct
8 Correct 14 ms 2304 KB Output is correct
9 Correct 8 ms 1152 KB Output is correct
10 Correct 15 ms 1180 KB Output is correct
11 Correct 20 ms 2532 KB Output is correct
12 Correct 24 ms 2560 KB Output is correct
13 Correct 10 ms 1280 KB Output is correct
14 Correct 10 ms 1280 KB Output is correct
15 Correct 15 ms 1912 KB Output is correct
16 Correct 16 ms 2048 KB Output is correct
17 Correct 29 ms 2304 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 19 ms 2424 KB Output is correct
20 Correct 21 ms 2428 KB Output is correct