oj.uz

Submission #740338

# Submission time Handle Problem Language Result Execution time Memory
740338 2023-05-12T10:57:59 Z TheOpChicken Secret (JOI14_secret) C++17
100 / 100
 440 ms 8316 KB 
#include "secret.h"
#include <bits/stdc++.h>
const int N = 1e3;
int val[N][N];
int a[N];
void rec(int l, int r){
    if(l > r)
        return;
    if(l == r){
        val[l][l] = a[l];
        return;
    }
    int mid = (l + r) >> 1;
    // (l, mid), (l + 1, mid), ..., (mid, mid)
    val[mid][mid] = a[mid];
    for(int i = mid-1; i >= l; i--){
      val[i][mid] = Secret(a[i], val[i+1][mid]);
    }
  val[mid+1][mid+1] = a[mid+1];
    for(int i = mid + 2; i <= r; i++){
        val[mid+1][i] = Secret(val[mid+1][i-1], a[i]);
    }
    rec(l, mid);
    rec(mid + 1, r);
}
void Init(int n, int A[]) {
    for(int i = 0; i < n; i++){
        a[i] = A[i];
    }
    memset(val, -1, sizeof(val));
    rec(0, n - 1);
}
 
int Query(int L, int R) {
    if(L == R)
        return val[L][L];
    for(int i = L; i + 1 <= R; i++){
        if(val[L][i] != -1 && val[i + 1][R] != -1)
            return Secret(val[L][i], val[i + 1][R]);
    }
    if(val[L][R] != -1)
        return val[L][R];
    return -1;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 6224 KB Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1
2 Correct 133 ms 6256 KB Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1
3 Correct 130 ms 6292 KB Output is correct - number of calls to Secret by Init = 3595, maximum number of calls to Secret by Query = 1
4 Correct 440 ms 8072 KB Output is correct - number of calls to Secret by Init = 7969, maximum number of calls to Secret by Query = 1
5 Correct 440 ms 8316 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
6 Correct 437 ms 8180 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
7 Correct 436 ms 8144 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
8 Correct 440 ms 8108 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
9 Correct 439 ms 8136 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
10 Correct 430 ms 8196 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1