// Link: https://cses.fi/problemset/task/1647
#include <bits/stdc++.h>
#include "secret.h"
using namespace std;
#define ll long long
#define lc (node<<1)+1
#define rc (node<<1)+2
#define endl '\n'
#define INF 1e9
const int max_n = 1000;
const int max_log = (int)log2(max_n) + 2;
int dat[max_log][max_n];
int arr[max_n], mask[max_n];
void divi(int left, int right, int level){
if(left == right) return;
int mid = (left + right) / 2;
dat[level][mid] = arr[mid];
for(int i = mid-1; i >= left; i --){
dat[level][i] = Secret(dat[level][i+1], arr[i]);
}
dat[level][mid+1] = arr[mid+1];
for(int i = mid+2; i <= right; i ++){
dat[level][i] = Secret(dat[level][i-1], arr[i]);
}
for(int i = mid+1; i <= right; i ++){
mask[i] |= (1 << level);
}
divi(left, mid, level+1); divi(mid+1, right, level + 1);
}
void Init(int N, int A[]){
for(int i = 0; i < N; i ++){
arr[i] = A[i];
}
divi(0, N-1, 0);
}
int Query(int L, int R){
if(L == R) return arr[L];
int bits = __builtin_ctz(mask[L] ^ mask[R]);
return Secret(dat[bits][L], dat[bits][R]);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
118 ms |
2536 KB |
Wrong Answer: Query(222, 254) - expected : 34031541, actual : 268854015. |
2 |
Incorrect |
118 ms |
2496 KB |
Wrong Answer: Query(60, 375) - expected : 669221184, actual : 311474560. |
3 |
Incorrect |
114 ms |
2452 KB |
Wrong Answer: Query(211, 401) - expected : 674373968, actual : 353554500. |
4 |
Incorrect |
427 ms |
4292 KB |
Wrong Answer: Query(90, 497) - expected : 397934825, actual : 343081568. |
5 |
Incorrect |
421 ms |
4392 KB |
Wrong Answer: Query(587, 915) - expected : 752404486, actual : 957013316. |
6 |
Incorrect |
418 ms |
4292 KB |
Wrong Answer: Query(200, 208) - expected : 277813445, actual : 154975445. |
7 |
Incorrect |
428 ms |
4328 KB |
Wrong Answer: Query(84, 976) - expected : 742463504, actual : 675449873. |
8 |
Incorrect |
420 ms |
4368 KB |
Wrong Answer: Query(58, 987) - expected : 20022464, actual : 273091792. |
9 |
Incorrect |
418 ms |
4328 KB |
Wrong Answer: Query(33, 967) - expected : 676869696, actual : 827853577. |
10 |
Incorrect |
428 ms |
4308 KB |
Wrong Answer: Query(116, 961) - expected : 68487362, actual : 337854787. |