#include "secret.h"
#include <cassert>
const int lim=1100;
int n,*a;
int left[12][lim],right[12][lim];
void dnc(int l,int r,int dep=0){
if(l==r){
return;
}
int mid=(l+r)>>1;
left[dep][mid]=a[mid];
for(int i=mid-1;l<=i;i--){
left[dep][i]=Secret(a[i],left[dep][i+1]);
}
assert(mid+1<=r);
right[dep][mid+1]=a[mid+1];
for(int i=mid+2;i<=r;i++){
right[dep][i]=Secret(right[dep][i-1],a[i]);
}
dnc(l,mid,dep+1),dnc(mid+1,r,dep+1);
}
void Init(int N, int A[]) {
n=N;
a=A;
dnc(0,n-1);
}
int Query(int L, int R) {
if(L==R){
return a[L];
}
int l=0,r=n-1,dep=0;
while(l<=r){
int mid=(l+r)>>1;
if(L<=mid&&mid<R){
return Secret(left[dep][L],right[dep][R]);
}else if(mid<L){
l=mid+1;
}else{
r=mid-1;
}
dep++;
}
return -1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
3660 KB |
Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1 |
2 |
Correct |
102 ms |
3664 KB |
Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1 |
3 |
Incorrect |
100 ms |
3748 KB |
Wrong Answer: Query(128, 153) - expected : 959658850, actual : 473307172. |
4 |
Incorrect |
354 ms |
4476 KB |
Wrong Answer: Query(172, 187) - expected : 590352579, actual : 590348483. |
5 |
Incorrect |
351 ms |
4444 KB |
Wrong Answer: Query(703, 706) - expected : 857111674, actual : 536870912. |
6 |
Incorrect |
354 ms |
4416 KB |
Wrong Answer: Query(738, 741) - expected : 983692994, actual : 950174288. |
7 |
Correct |
357 ms |
4436 KB |
Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1 |
8 |
Correct |
365 ms |
4484 KB |
Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1 |
9 |
Correct |
362 ms |
4432 KB |
Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1 |
10 |
Correct |
360 ms |
4688 KB |
Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1 |