답안 #488975

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
488975	2021-11-21T00:47:40 Z	fun_day	쌀 창고 (IOI11_ricehub)	C++14	42 / 100	109 ms	1488 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 && here + used >= ans){
        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

#	결과	실행 시간	메모리	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

25.0 / 25.0

#	결과	실행 시간	메모리	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	1 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	0 ms	204 KB	Output is correct
22	Correct	0 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	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct

Subtask #3

0 / 26.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 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

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	460 KB	Output is correct
2	Correct	10 ms	460 KB	Output is correct
3	Correct	10 ms	1484 KB	Output is correct
4	Correct	105 ms	1484 KB	Output is correct
5	Correct	28 ms	844 KB	Output is correct
6	Correct	28 ms	844 KB	Output is correct
7	Correct	10 ms	1488 KB	Output is correct
8	Correct	89 ms	1444 KB	Output is correct
9	Correct	44 ms	844 KB	Output is correct
10	Correct	43 ms	848 KB	Output is correct
11	Correct	11 ms	1484 KB	Output is correct
12	Correct	109 ms	1440 KB	Output is correct
13	Incorrect	32 ms	784 KB	Output isn't correct
14	Halted	0 ms	0 KB	-