Question

Write code that will produce the following pyramid for a user designated number of rows (user input).

1

11

121

12321

1235321

(Based on Fibonacci numbers)

*USE JAVA*

Answer 1

import java.util.*;

import java.lang.*;

public class Sample{

public static void main(String args[]){

Scanner input=new Scanner(System.in);

int n;

n=input.nextInt();

int[] arr=new int[n];

int a=0,b=1;

for(int i=0;i<n;i++){

int c=a+b;

arr[i]=c;

a=b;

b=c;

}

for(int i=1;i<=n;i++){

if(i==1){

System.out.print(1);

}else{

a=0;b=1;

for(int j=1;j<=Math.ceil((float)arr[i-1]/2);j++){

int c=a+b;

System.out.print(c);

a=b;

b=c;

}

a=0;b=1;

for(int j=1;j<=Math.floor((float)arr[i-1]/2);j++){

int c=a+b;

System.out.print(c);

a=b;

b=c;

}

}

System.out.println("");

}

}

}