oj.uz

Submission #661542

# Submission time Handle Problem Language Result Execution time Memory
661542 2022-11-26T02:02:26 Z rxlfd314 Secret (JOI14_secret) C++17
0 / 100
 431 ms 8164 KB 
#include "secret.h"
int n, pref[1000][1000];
void precompute(int l, int r, int A[]) {
	int mid = l + r >> 1;
	pref[mid][mid] = A[mid];
	pref[mid+1][mid+1] = A[mid+1];
	for (int i = mid - 1; i >= l; i--) {
		pref[mid][i] = Secret(pref[mid][i+1], A[i]);
	}
	for (int i = mid + 2; i <= r; i++) {
		pref[mid+1][i] = Secret(pref[mid+1][i-1], A[i]);
	}
	if (l < mid) {
		precompute(l, mid, A);
	}
	if (mid + 1 < r) {
		precompute(mid + 1, r, A);
	}
}
void Init(int N, int A[]) {
	n = N;
	precompute(0, N - 1, A);
}
int Query(int L, int R) {
	int lo = 0, hi = n - 1;
	while (lo != hi) {
		int mid = lo + hi >> 1;
		if (L <= mid && mid < R) {
			return Secret(pref[mid][L], pref[mid+1][R]);
		}
		if (R == mid) {
			return pref[mid][L];
		}
		if (mid < L) {
			lo = mid + 1;
		} else {
			hi = mid;
		}
	}
	return pref[lo][lo];
}

Compilation message

secret.cpp: In function 'void precompute(int, int, int*)':
secret.cpp:4:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    4 |  int mid = l + r >> 1;
      |            ~~^~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:27:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |   int mid = lo + hi >> 1;
      |             ~~~^~~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 119 ms 4256 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 268854015.
2 Incorrect 123 ms 4332 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 311474560.
3 Incorrect 124 ms 4296 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 353554500.
4 Incorrect 424 ms 8164 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 343081568.
5 Incorrect 431 ms 8116 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 957013316.
6 Incorrect 416 ms 8140 KB Wrong Answer: Query(200, 208) - expected : 277813445, actual : 154975445.
7 Incorrect 428 ms 8060 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 675449873.
8 Incorrect 423 ms 8140 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 273091792.
9 Incorrect 420 ms 8100 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 827853577.
10 Incorrect 414 ms 8100 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 337854787.