JumpGame.java

import java.util.ArrayList;
import java.util.Arrays;

public class JumpGame {
    static int dp[] = new int[1000000];
    static ArrayList<Boolean> list = new ArrayList<>();
    static boolean jump(int a[], int n){        
        if(n>=a.length-1){
            // System.out.println("true");
            list.add(true);
            return true;
        }
        
        if(a[n] == 0){
            list.add(false);
            return false;
        }

        if(dp[n] != -1){
            if(dp[n] == 1)
            return true;
            else
            return false;
        }   

       boolean j = false;
        for(int i =1; i<=a[n]; i++){
          j = jump(a, n+i);
        }
        if(j==true)
        dp[n]=1;
        else
        dp[n]=0;

        return j;
    }

    public static void main(String args[]){
        Arrays.fill(dp,-1);
        int nums[] ={5,5,6,7,5,5,2,2,3,6,2,4,5,1,7,3,6,4,5,5,7,7,5,5,4,6,5,6,2,3,1,2,1,7,1,4,5,4,3,4,5,4,6,4,6,1,5,2,4,6,4,4,3,5,6,1,4,6,3,7,6,4,1,7,5,3,5,7,6,7,7,5,6,4,5,7,6,7,7,4,1,2,4,1,6,1,2,7,4,6,1,5,6,3,3,1,2,1,7,3,2,2,3,6,5,6,7,5,5,7,2,5,6,3,4,3,1,2,5,1,1,2,1,4,6,6,2,4,3,5,5,6,7,5,4,4,6,5,7,6,5,7,4,3,6,7,3,4,6,7,6,7,2,6,2,5,3,1,1,4,5,5,1,2,3,4,4,3,3,5,1,1,4,6,5,4,3,4,2,2,7,6,4,3,6,4,2,2,3,5,4,5,3,7,5,2,2,6,3,6,6,3,4,5,6,4,4,1,3,7,1,3,6,3,5,5,1,4,5,5,2,1,7,5,2,6,4,1,6,2,7,6,1,5,4,3,5,6,5,5,4,3,2,1,7,6,6,5,6,1,5,1,4,2,6,3,2,1,3,6,1,1,4,7,5,4,1,4,1,2,7,2,1,5,6,3,6,4,4,7,2,1,1,6,3,5,1,7,5,6,5,2,1,4,5,7,5,5,3,5,2,7,2,2,1,7,6,1,1,1,1,3,2,7,5,1,4,7,2,6,2,2,5,7,5,1,1,6,2,1,2,1,5,7,5,2,6,1,5,2,2,5,5,7,7,3,2,7,4,1,5,5,2,1,1,7,5,6,4,5,1,6,3,5,7,6,5,6,2,1,3,2,2,6,2,3,4,2,2,4,7,4,7,6,4,6,2,4,5,6,4,4,1,4,6,3,4,5,3,6,3,5,1,6,7,3,3,5,7,6,2,6,1,2,5,5,2,4,2,5,5,2,6,7,3,6,3,6,4,5,1,3,7,1,2,3,3,2,3,6,5,6,6,3,3,6,4,6,6,4,5,4,1,1,7,6,7,6,2,5,1,7,7,1,6,3,6,6,6,2,2,5,1,3,4,5,3,3,5,5,2,6,7,2,1,6,1,1,1,2,1,4,2,3,3,1,7,6,5,6,2,7,3,1,3,5,7,7,7,1,4,7,3,5,5,5,6,4,5,2,7,7,7,7,1,4,2,2,4,3,1,6,6,6,5,5,3,7,2,1,4,7,1,2,2,6,2,6,2,3,7,5,7,2,6,6,7,2,6,2,4,4,6,3,7,3,7,1,3,6,5,6,4,1,4,4,3,7,6,7,2,5,6,3,5,3,5,4,1,4,2,1,2,7,3,5,1,6,7,4,3,4,1,5,2,1,1,1,3,7,5,6,3,6,6,3,3,5,3,5,2,1,1,7,1,6,5,5,3,2,4,3,1,4,7,6,1,3,1,6,2,1,5,3,2,3,1,4,3,7,5,4,1,7,4,2,6,4,1,4,6,6,2,1,1,5,6,5,6,1,1,2,6,4,1,5,5,6,7,3,5,1,5,5,4,7,1,2,1,2,6,5,5,3,1,5,1,2,4,1,2,6,2,7,4,1,4,1,6,7,5,5,1,6,6,1,4,1,7,6,7,6,1,4,1,3,5,3,1,7,5,7,5,6,5,5,1,2,7,2,6,6,4,3,6,1,2,7,3,1,3,6,1,5,4,6,1,2,4,1,6,7,2,4,7,1,3,2,7,3,4,1,7,6,6,3,4,1,6,6,6,1,1,1,1,2,2,1,3,3,1,4,2,6,6,6,2,1,4,7,5,5,4,2,4,2,1,5,6,6,1,5,6,4,7,2,4,3,5,4,4,3,3,6,1,7,7,7,6,7,3,4,1,6,4,5,7,3,2,6,7,4,7,1,7,6,6,3,1,4,1,2,6,6,1,7,1,6,1,1,7,2,5,6,1,7,3,5,3,3,3,4,3,3,7,4,5,1,3,2,2,3,7,2,4,1,2,5,2,3,3,5,7,5,2,5,1,6,5,4,1,5,3,4,5,6,3,5,3,1,4,1,4,7,1,4,2,3,1,6,4,3,7,4,6,5,5,3,7,2,7,1,5,2,2,7,7,2,3,1,3,3,6,4,2,1,2,2,4,6,5,5,3,6,6,6,2,1,6,6,7,2,1,3,6,2,3,3,5,4,5,2,2,3,3,1,6,7,7,5,3,6,5,1,7,3,3,2,6,4,5,4,5,6,4,1,3,2,2,4,5,5,7,7,2,2,2,2,2,3,6,2,4,2,6,5,7,4,6,5,7,2,5,2,4,6,1,3,3,2,1,6,3,5,1,1,6,5,1,6,3,4,3,4,3,3,6,3,4,1,6,1,1,7,7,6,5,4,7,7,1,2,4,7,6,1,4,2,5,5,1,2,1,4,5,5,2,4,5,3,7,3,3,1,5,7,2,1,4,7,7,2,5,1,7,3,2,7,7,5,4,3,3,1,5,3,2,6,7,1,6,5,5,7,6,2,1,1,2,6,7,5,6,6,5,5,1,2,3,5,6,4,6,3,2,5,3,4,1,1,4,4,2,4,7,2,6,6,5,5,1,2,4,4,4,1,6,6,3,3,2,6,1,5,1,2,5,2,6,3,4,4,1,7,4,6,7,5,4,7,7,5,5,3,7,2,3,2,6,1,5,3,1,3,1,7,6,5,4,2,6,6,2,7,4,4,3,2,2,1,3,4,2,3,1,3,1,1,3,3,3,0,0,0,0,0,0,0};
        jump(nums, 0);
        // for(int ele:dp){
        //     System.out.print(ele+" ");
        // }
        System.out.println(nums.length);
        System.out.println(list.contains(true));
    }
    
}