oj.uz

Submission #949756

# Submission time Handle Problem Language Result Execution time Memory
949756 2024-03-19T15:53:21 Z Trisanu_Das Secret (JOI14_secret) C++17
100 / 100
 399 ms 8284 KB 
#include <bits/stdc++.h>
#include "secret.h"
 
int memo[1000][1000], n;
 
void build(int l, int r, int A[]){
  int m = (l + r) / 2;
  memo[m][m] = A[m];
  memo[m + 1][m + 1] = A[m + 1];
  for(int i = m + 2; i <= r; i++) memo[m + 1][i] = Secret(memo[m + 1][i - 1], A[i]);
  for(int i = m - 1; i >= l; i--) memo[m][i] = Secret(A[i], memo[m][i + 1]);
  if(l < m) build(l, m, A);
  if(m + 1 < r) build(m + 1, r, A);
}
 
void Init(int N, int A[]){
  n = N;
  build(0, n - 1, A);
}
 
int Query(int L, int R){
  int l = 0, r = n - 1;
  while(l != r){
    int m = (l + r) / 2;
    if(L <= m && m < R) return Secret(memo[m][L], memo[m + 1][R]);
    else if(m == R) return memo[m][L];
    else if(m < L) l = m + 1;
    else r = m;
  }
  return memo[l][l];
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 120 ms 6468 KB Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1
2 Correct 110 ms 6232 KB Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1
3 Correct 114 ms 6740 KB Output is correct - number of calls to Secret by Init = 3595, maximum number of calls to Secret by Query = 1
4 Correct 394 ms 8280 KB Output is correct - number of calls to Secret by Init = 7969, maximum number of calls to Secret by Query = 1
5 Correct 384 ms 8276 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
6 Correct 392 ms 8284 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
7 Correct 399 ms 8216 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
8 Correct 389 ms 8276 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
9 Correct 385 ms 8284 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
10 Correct 382 ms 8280 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1