#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
int besthub(int R, int L, int x[], long long B)
{
vector<long long>X(R+1);
X[0] = -(long long)1e18;
for (int i = 1; i <= R; i++){
X[i] = x[i - 1];
}
int l = 1, r = R;
long long pf[R+1];
pf[0] = 0;
for (int i = 1; i<=R; i++){
pf[i] = pf[i - 1] + X[i];
}
function<bool(int)>check = [&](int mid){
int r = 0;
int l = 1;
while(r + 1 <= R){
++r;
while(r - l + 1 > mid){
++l;
}
if (r - l + 1 == mid){
int itt = (r + l) / 2;
for (int it = itt - 20 ; it <= itt + 20; it++){
if (it < l || it > r)continue;
long long sum = 0;
if (it != l){
sum += (it - l) * X[it] - (pf[it-1] - pf[l-1]);
}
if (it != r){
sum += -(r - it) * X[it] + (pf[r] - pf[it]);
}
if (sum <= B)return true;
}
}
}
return false;
};
while(l<=r){
int mid = (l+r) / 2;
if (check(mid)){
l = mid + 1;
}else{
r = mid - 1;
}
}
return l - 1;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
232 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
1 ms |
212 KB |
Output is correct |
| 22 |
Correct |
1 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
212 KB |
Output is correct |
| 28 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
264 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
232 KB |
Output is correct |
| 12 |
Correct |
1 ms |
320 KB |
Output is correct |
| 13 |
Correct |
1 ms |
304 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
3 ms |
340 KB |
Output is correct |
| 22 |
Correct |
3 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
3 ms |
340 KB |
Output is correct |
| 28 |
Correct |
3 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
22 ms |
596 KB |
Output is correct |
| 2 |
Correct |
22 ms |
596 KB |
Output is correct |
| 3 |
Correct |
10 ms |
2260 KB |
Output is correct |
| 4 |
Correct |
10 ms |
2260 KB |
Output is correct |
| 5 |
Correct |
54 ms |
1236 KB |
Output is correct |
| 6 |
Correct |
54 ms |
1236 KB |
Output is correct |
| 7 |
Correct |
10 ms |
2260 KB |
Output is correct |
| 8 |
Correct |
9 ms |
2276 KB |
Output is correct |
| 9 |
Correct |
45 ms |
1236 KB |
Output is correct |
| 10 |
Correct |
49 ms |
1236 KB |
Output is correct |
| 11 |
Correct |
10 ms |
2260 KB |
Output is correct |
| 12 |
Correct |
10 ms |
2260 KB |
Output is correct |
| 13 |
Correct |
57 ms |
1236 KB |
Output is correct |
| 14 |
Correct |
56 ms |
1236 KB |
Output is correct |
| 15 |
Correct |
8 ms |
1748 KB |
Output is correct |
| 16 |
Correct |
10 ms |
1720 KB |
Output is correct |
| 17 |
Correct |
10 ms |
2900 KB |
Output is correct |
| 18 |
Correct |
10 ms |
2884 KB |
Output is correct |
| 19 |
Correct |
10 ms |
3112 KB |
Output is correct |
| 20 |
Correct |
14 ms |
3128 KB |
Output is correct |
