Submission #915934

#	Time	Username	Problem	Language	Result	Execution time	Memory
915934		OAleksa	Secret (JOI14_secret)	C++14	100 / 100	400 ms	8440 KiB

secret

#include "secret.h"
#include <bits/stdc++.h>
//vaso daso gej
using namespace std;
#define f first
#define s second
const int N = 1010;
int n, a[N], val[N][N];
void solve(int L, int R) {
  if (R - L <= 1)
    return;
  int mid = (L + R) / 2;
  for (int i = mid - 1;i >= L;i--)
    val[i][mid] = Secret(a[i], val[i + 1][mid]);
  for (int i = mid + 2;i <= R;i++)
    val[mid + 1][i] = Secret(val[mid + 1][i - 1], a[i]);
  solve(L, mid);
  solve(mid + 1, R);
}
void Init(int N, int A[]) {
  n = N;
  for (int i = 0;i < n;i++) {
    a[i] = A[i];
    val[i][i] = a[i];
  }
  solve(0, n - 1);
}

int Query(int L, int R) {
  if (L == R)
    return a[L];
  else if (R == L + 1)
    return Secret(a[L], a[R]);
  for (int i = L;i <= R;i++) {
    for (int j = i + 1;j <= R;j++) {
      if (val[i][j - 1] > 0 && val[j][R])
        return Secret(val[i][j - 1], val[j][R]);
    }
  }
}

Compilation message (stderr)

secret.cpp: In function 'int Query(int, int)':
secret.cpp:40:1: warning: control reaches end of non-void function [-Wreturn-type]
   40 | }
      | ^

• Subtask 1: 100 / 100