#include "ricehub.h"
#include <bits/stdc++.h>
int besthub(int R, int L, int X[], long long B) {
std::vector<int64_t> pref(R + 1);
for (int i = 0; i < R; i++) {
pref[i + 1] = pref[i] + X[i];
}
auto check = [&](int mid) -> bool {
// 3 / 2 = 1
// 4 / 2 = 2
// 0 1 2 3
int elem = mid / 2;
int num_left = elem;
int num_right = mid - num_left;
for (int i = 0; i + mid <= R; i++) {
int64_t me = X[i + elem];
auto sum_left = pref[i + elem] - pref[i]; // i ->
auto sum_right = pref[i + mid] - pref[i + elem];
auto ans = me * num_left - sum_left + sum_right - me * num_right;
if (ans <= B) return true;
}
return false;
};
int ans = 0;
int lb = 1, rb = R;
while (lb <= rb) {
int mb = (lb + rb) / 2;
if (check(mb)) {
ans = mb;
lb = mb + 1;
} else {
rb = mb - 1;
}
}
return ans;
}
#ifdef LOCAL
#include "ricehub.h"
#include <stdio.h>
#include <stdlib.h>
#define MAX_R 1000000
static int R, L;
static long long B;
static int X[MAX_R];
static int solution;
inline
void my_assert(int e) {if (!e) abort();}
static void read_input()
{
int i;
my_assert(3==scanf("%d %d %lld",&R,&L,&B));
for(i=0; i<R; i++)
my_assert(1==scanf("%d",&X[i]));
my_assert(1==scanf("%d",&solution));
}
int main()
{
int ans;
read_input();
ans = besthub(R,L,X,B);
if(ans==solution)
printf("Correct.\n");
else
printf("Incorrect. Returned %d instead of %d.\n",ans,solution);
return 0;
}
#endif
| # |
결과 |
실행 시간 |
메모리 |
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 |
452 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
1 ms |
604 KB |
Output is correct |
| 6 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
| 26 |
Correct |
1 ms |
348 KB |
Output is correct |
| 27 |
Correct |
0 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 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 |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 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 |
0 ms |
348 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 |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
344 KB |
Output is correct |
| 23 |
Correct |
1 ms |
460 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
1 ms |
348 KB |
Output is correct |
| 26 |
Correct |
1 ms |
348 KB |
Output is correct |
| 27 |
Correct |
1 ms |
348 KB |
Output is correct |
| 28 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
716 KB |
Output is correct |
| 2 |
Correct |
2 ms |
604 KB |
Output is correct |
| 3 |
Correct |
9 ms |
4508 KB |
Output is correct |
| 4 |
Correct |
9 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
5 ms |
3384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
3164 KB |
Output is correct |
| 7 |
Correct |
8 ms |
4184 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4188 KB |
Output is correct |
| 9 |
Correct |
6 ms |
3164 KB |
Output is correct |
| 10 |
Correct |
5 ms |
3160 KB |
Output is correct |
| 11 |
Correct |
9 ms |
4440 KB |
Output is correct |
| 12 |
Correct |
9 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
6 ms |
3420 KB |
Output is correct |
| 14 |
Correct |
5 ms |
3420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3828 KB |
Output is correct |
| 16 |
Correct |
7 ms |
3928 KB |
Output is correct |
| 17 |
Correct |
8 ms |
4184 KB |
Output is correct |
| 18 |
Correct |
8 ms |
4188 KB |
Output is correct |
| 19 |
Correct |
9 ms |
4320 KB |
Output is correct |
| 20 |
Correct |
9 ms |
4188 KB |
Output is correct |
