Submission #488973

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
488973	2021-11-21T00:24:19 Z	fun_day	Rice Hub (IOI11_ricehub)	C++14	17 / 100	99 ms	2512 KB

ricehub

#include <bits/stdc++.h>

using namespace std;

int besthub(int R, int L, int X[] , long long B){
  vector<long long> pref(R);
  for(int i = 0 ; i < R ; i++){
    if(i == 0) pref[i] = (long long) X[i];
    else pref[i] = pref[i - 1] + (long long) X[i];
  }
  int best = 0;
  for(int i = 1 ; i < R ; i++){
    int l = 0 , r = i;
    int ans = 0;
    while(l <= r){
      int mid = l + (r - l) / 2;
      int used = i - mid;
      long long sum = (long long) X[i] * used  - (pref[i - 1] - (mid > 0 ? pref[mid - 1] : 0));
      long long keep = B - sum;
      int left = i , right = R - 1;
      int here = 0;
      while(left <= right){
        int middle = left + (right - left) / 2;
        int cur = middle - i;
        long long s = pref[middle] - pref[i] - (long long) X[i] * cur;
        if(s + sum <= B){
          here = max(here , cur);
          left = middle + 1;
        }
        else{
          right = middle - 1;
        }
      }
      if(keep >= 0){
        ans = max(ans , here + used);        
        r = mid - 1;
      }
      else{
        l = mid + 1;        
      }
    }
    best = max(best , ans);
    if(best == R - 1) break;
  }
  return best + 1;
}

Subtask #1

17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	0 ms	204 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	0 ms	204 KB	Output is correct
26	Correct	0 ms	204 KB	Output is correct
27	Incorrect	0 ms	204 KB	Output isn't correct
28	Halted	0 ms	0 KB	-

Subtask #3

0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Incorrect	1 ms	204 KB	Output isn't correct
16	Halted	0 ms	0 KB	-

Subtask #4

0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	460 KB	Output is correct
2	Correct	9 ms	460 KB	Output is correct
3	Correct	11 ms	1484 KB	Output is correct
4	Correct	99 ms	1356 KB	Output is correct
5	Correct	29 ms	1232 KB	Output is correct
6	Correct	30 ms	1232 KB	Output is correct
7	Correct	10 ms	2256 KB	Output is correct
8	Correct	86 ms	2256 KB	Output is correct
9	Correct	40 ms	1104 KB	Output is correct
10	Correct	39 ms	1104 KB	Output is correct
11	Correct	11 ms	2480 KB	Output is correct
12	Correct	99 ms	2512 KB	Output is correct
13	Incorrect	31 ms	1232 KB	Output isn't correct
14	Halted	0 ms	0 KB	-