ZOHO INTERVIEW QUESTION 17

QUESTION:

Given two arrays. Find its union.

  Input  : 

  Enter size of first array  :  6
  Enter the elements    :  1 2 3 4 5 3
  Enter size of second array  :  4
  Enter the elements    :  1 2 7 5

  OUTPUT  :

  1 2 3 4 5 7

PROGRAM:

#include<stdio.h>
#include<stdlib.h>
int main()
{
    int a[100],c,d,i,j,k;
    scanf("%d ",&c);
    for(i=0;i<c;i++)
    {
        scanf("%d",&a[i]);
    }
    scanf("%d",&d);
    for(i=c;i<(c+d);i++)
    {
        scanf("%d",&a[i]);
    }
    for(i=0;i<(c+d);i++)
    {
        for(j=0;j<=i;j++)
        {
            if(a[j]==a[i] && j!=i)
            break;
            else if(a[j]==a[i] && j==i)
            printf("%d ",a[i]);
        }
    }
}