oj.uz

Submission #714472

# Submission time Handle Problem Language Result Execution time Memory
714472 2023-03-24T15:24:16 Z MattTheNub Secret (JOI14_secret) C++17
0 / 100
 459 ms 4532 KB 
#include "secret.h"

int *a;
int dat[18][1005]{0};
int mask[1005]{0};

void compute(int l, int r, int depth) {
  if (l == r)
    return;

  int mid = (l + r) / 2;
  dat[depth][mid] = a[mid];
  for (int i = mid - 1; i >= l; i--)
    dat[depth][i] = Secret(a[i], dat[depth][i + 1]);
  dat[depth][mid + 1] = a[mid + 1];
  for (int i = mid + 2; i <= r; i++)
    dat[depth][i] = Secret(a[i], dat[depth][i - 1]);
  for (int i = mid + 1; i <= r; i++) {
    mask[i] ^= 1 << depth;
  }
  compute(l, mid, depth + 1);
  compute(mid + 1, r, depth + 1);
}

void Init(int N, int A[]) {
  a = A;
  compute(0, N - 1, 0);
}

int Query(int L, int R) {
  if (L == R)
    return a[L];

  int x = __builtin_ctz(mask[L] ^ mask[R]);
  return Secret(dat[x][L], dat[x][R]);
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 112 ms 2528 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 809782271.
2 Incorrect 116 ms 2364 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 68749376.
3 Incorrect 114 ms 2472 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 136349820.
4 Incorrect 442 ms 4308 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 650789536.
5 Incorrect 449 ms 4320 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 377506838.
6 Incorrect 422 ms 4532 KB Wrong Answer: Query(738, 741) - expected : 983692994, actual : 61461050.
7 Incorrect 459 ms 4344 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 687550570.
8 Incorrect 432 ms 4276 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 145923264.
9 Incorrect 441 ms 4332 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 18757135.
10 Incorrect 438 ms 4308 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 70590726.