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C Program for Set Operations - Union, Intersection and Symmetric Difference



C Program for Set Operations

Union, Intersection and Symmetric Difference


PROGRAM 
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#include<stdio.h>
#include<conio.h>
 main()
{
int i,j,k,p,ch,n1,n2,set1[10],set2[10], set3[20],flag;
int wish;


printf("\n Enter the size of sets1 \n");
scanf("%d",&n1);
printf("\n Enter the element of set1 \n" );
for(i=0;i<n1;i++)
scanf("%d",&set1[i]);
printf("\n Enter the size of sets2 \n");
scanf("%d",&n2);
printf("\n Enter the elements of set2 \n" );
for(i=0;i<n2;i++)
scanf("%d",&set2[i]);


do
{
printf("\n Menu for set operations");
printf("\n Press 1 for UNION");
printf("\n press 2 for INTERSECTION");
printf("\n press 3 for DIFFERENCE");
printf("\n Enter your Choice");
scanf("%d",&ch);
switch(ch)
{
case 1://for union

k=0;
for(i=0;i<n1;i++)
{
set3[k]=set1[i];
k++;
}
for(i=0;i<n2;i++)
{
flag=1;
for(j=0;j<n1;j++)
{
if(set2[i]==set1[j])
{
flag=0;
break;
}
}
if(flag==1)
{
set3[k]=set2[i];
k++;
}
}
p=k;
for(k=0;k <p;k++)

{
printf(" %d",set3[k]);
}

break;


case 2: //for intersection

k=0;
for(i=0;i<n2;i++)
{
flag=1;
for(j=0;j<n1;j++)
{
if(set2[i]==set1[j])
{
flag=0;
break;
}
}
if(flag==0)
{
set3[k]=set2[i];
k++;
}
}
p=k;
for(k=0;k <p;k++)

{
printf("%d",set3[k]);

}
break;


case 3://for difference

k=0;
for(i=0;i<n1;i++)
{
flag=1;
for(j=0;j<n2;j++)
{
if(set1[i]==set2[j])
{
flag=0;
break;
}
}
if(flag==1)
{
set3[k]=set1[i];
k++;
}
}
p=k;
for(k=0;k <p;k++)

{
printf(" %d",set3[k]);

}
break;

}

printf("\n Do you want to continue(0/1)? ");

scanf("%d",&wish);


}


while(wish==0);

}

OUTPUT








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