C Program to find the two sets Intersection and Union - IProgramX

Q. Write a program to find the union and intersection of the two sets of integers (store it in two arrays).
                                OR
Q. Write a program to find the intersection of the two set of integers. store the intersection in another array 

Program

#include<stdio.h>
#include<math.h>
void main()
{
int i,k=0,x[10],y[10],c[25],j,n,n1,d[25],f=0;
printf("\n how many elements in SET 1:");
scanf("%d",&n);
printf("\n enter 1st SET elements");
for(i=0;i<n;i++)
{
scanf("%d",&x[i]);
}
printf("\n how many elements in set 2:");
scanf("%d",&n1);
printf("\n enter 2st SET elements");
for(i=0;i<n1;i++)
{
scanf("%d",&y[i]);
}
for(i=0;i<n;i++)
{
c[k]=x[i];
k++;
}
for(i=0;i<n;i++)
{
for(j=0;j<n1;j++)
{
if(y[i]==x[j])
break;
}
if(j==n)
{
c[k]=y[i];
k++;
}
}
printf("\n the union set is:{");
for(i=0;i<k;i++)
printf("%d",c[i]);
printf("}\n");
for(j=0;j<n;j++)
{
for(i=0;i<n1;i++)
{
if(y[i]==x[j])
break;
}
if(i!=n1)
{
d[f]=y[i];
f++;
}
}
printf("\n the intersection set is :{");
for(i=0;i<f;i++)
printf("%d",d[i]);
printf("}");
}

/*

 how many elements in SET 1:4

 enter 1st SET elements
 3
 2
 7
 6

 how many elements in set 2:5

 enter 2st SET elements
 7
 6
 2
 5
 4

 the union set is:{3276}

 the intersection set is :{276}