oj.uz

Submission #348828

# Submission time Handle Problem Language Result Execution time Memory
348828 2021-01-15T20:29:22 Z spatarel Secret (JOI14_secret) C++17
0 / 100
 502 ms 4972 KB 
#include "secret.h"
#include <map>

struct StructQuery {
  int left;
  int right;
};

bool operator < (const StructQuery &a, const StructQuery &b) {
  return (a.left < b.left)
      || (a.left == b.left && a.right < b.right);
}

int n;
std::map<StructQuery, int> secrets;

void querySecrets(int left, int right, int A[]) {
  if (left == right) {
    secrets[StructQuery{left, right}] = A[left];
  } else {
    int avg = (left + right) / 2;
    secrets[StructQuery{avg, avg}] = A[avg];
    for (int i = avg - 1; i >= left; i--) {
      secrets[StructQuery{i, avg}] =
          Secret(A[i], secrets[StructQuery{i + 1, avg}]);
    }
    secrets[StructQuery{avg + 1, avg + 1}] = A[avg + 1];
    for (int i = avg + 2; i <= right; i++) {
      secrets[StructQuery{avg + 1, i}] =
          Secret(secrets[StructQuery{avg + 1, i - 1}], i);
    }
    querySecrets(left, avg, A);
    querySecrets(avg + 1, right, A);
  }
}

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

int Query(int L, int R) {
  int left = 0;
  int right = n - 1;
  while (true) {
    int avg = (left + right) / 2;
    if (R == avg || L == avg + 1) {
      return secrets[StructQuery{L, R}];
    } else if (L <= avg && avg + 1 <= R) {
      return Secret(secrets[StructQuery{L, avg}], secrets[StructQuery{avg + 1, R}]);
    } else if (R < avg) {
      right = avg;
    } else { // avg + 1 < L
      left = avg + 1;
    }
  }
  return -1;
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 132 ms 2668 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 272722698.
2 Incorrect 133 ms 2668 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 841488713.
3 Incorrect 134 ms 2668 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 478273654.
4 Incorrect 498 ms 4972 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 300941931.
5 Incorrect 495 ms 4844 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 459821058.
6 Incorrect 502 ms 4972 KB Wrong Answer: Query(738, 741) - expected : 983692994, actual : 8536157.
7 Incorrect 500 ms 4844 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 757106754.
8 Incorrect 499 ms 4844 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 480621968.
9 Incorrect 497 ms 4972 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 22035146.
10 Incorrect 500 ms 4972 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 541248776.