Submission #1329773

#	Time	Username	Problem	Language	Result	Execution time	Memory
1329773		hoangtien69	Secret (JOI14_secret)	C++20	0 / 100	334 ms	8296 KiB

secret

#include<bits/stdc++.h>
#include "secret.h"
using namespace std;

const int MAXN = 1005;
int peal[MAXN][MAXN];

void solve(int left, int right)
{
    if (left >= right) return;
    int mid = (left + right) / 2;
    solve(left, mid);
    solve(mid + 1, right);
    for (int i = mid - 1; i >= left; i--)
    {
        peal[i][mid] = Secret(peal[i][mid - 1], peal[mid][mid]);
    }
    for (int i = mid + 1; i <= right; i++)
    {
        peal[mid][i] = Secret(peal[mid][i - 1], peal[i][i]);
    }
}

void Init(int N, int A[])
{
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < N; j++)
        {
            peal[i][j] = -1;
        }
    }
    for (int i = 0; i < N; i++)
    {
        peal[i][i] = A[i];
    }
    solve(0, N - 1);
}

int Query(int L, int R)
{
    if (peal[L][R] != -1)
    {
        return peal[L][R];
    }
    int mid = (L + R) / 2;
    if (peal[L][mid] != -1 && peal[mid + 1][R] != -1)
    {
        return Secret(peal[L][mid], peal[mid + 1][R]);
    }
    for (int i = L; i < R; i++)
    {
        if (peal[L][i] != -1 && peal[i + 1][R] != -1)
        {
            return Secret(peal[L][i], peal[i + 1][R]);
        }
    }
}

Compilation message (stderr)

secret.cpp: In function 'int Query(int, int)':
secret.cpp:58:1: warning: control reaches end of non-void function [-Wreturn-type]
   58 | }
      | ^

• Subtask 1: 0 / 100