set_operations_arrays.cpp

operations on sets

@@ -0,0 +1,141 @@
+#include <iostream>
+using namespace std;
+class set
+{
+ int set_array[10];
+ int size;
+ int i;
+ int j=0;
+ int k=0;
+ int m=0;
+ int flag=0;
+public:
+ void accept();
+ void display();
+ void intersect(set B);
+ void uniset(set B);
+ void subtract(set B);
+};
+ void set::accept()
+ {
+  cout<<endl<<"enter no of elements "<<endl;
+  cin>>size;
+  cout<<"enter elements "<<endl;
+  for(i=0;i<size;i++)
+  {
+  cin>>set_array[i];
+  }
+ }
+void set::display()
+{
+ cout<<"elements are"<<endl;
+ for(i=0;i<size;i++){
+ cout<<set_array[i]<<",";
+}
+cout<<endl;
+}
+void set::intersect(set B)
+  {
+  set C;
+  cout<<"Intersection is "<<endl;
+ for(i=0;i<size;i++)
+ {
+ for(j=0;j<B.size;j++)
+ {
+ if(set_array[i]==B.set_array[j])
+ {
+  C.set_array[k]=B.set_array[j];
+  cout<<C.set_array[k]<<",";
+  k++;
+ }
+ }
+ }
+
+}
+
+
+void set::uniset(set B){
+ set D;
+int k=0;
+int count=0;
+   cout<<"union is "<<endl;
+  for(j=0,k=0;j<B.size;j++,k++)
+  {
+  D.set_array[k]=B.set_array[j];
+   }
+for(i=0;i<size;i++)
+{
+count=0;
+  for(j=0;j<B.size;j++)
+    {
+     if(set_array[i]!=B.set_array[j])
+     {
+      count++;
+     }
+if(count==B.size)
+{ D.set_array[k]=set_array[i];
+k++;
+}
+    }
+}
+D.size=k;
+D.display();
+}
+
+
+void set::subtract(set B)
+{
+set E;
+int k=0;
+int count=0;
+for(i=0;i<size;i++)
+{
+count=0;
+for(j=0;j<B.size;j++)
+    {
+     if(set_array[i]!=B.set_array[j])
+     {
+      count++;
+     }
+if(count==B.size)
+{ E.set_array[k]=set_array[i];
+k++;
+}
+    }
+}
+E.size=k;
+cout<<"a-b is  ";
+E.display();
+}
+int main() {
+ set A;
+ set B;
+ A.accept();
+ A.display();
+B.accept();
+B.display();
+int choice;
+
+do{
+	cout<<endl;
+	cout<<"Enter choice"<<endl;
+	cout<<"enter one for intersection"<<endl;
+	cout<<"enter two for union"<<endl;
+	cout<<"enter three for subtract"<<endl;
+	cin>>choice;
+	switch(choice)
+	{
+	case 1:
+		A.intersect(B);
+  break;
+	case 2:
+		A.uniset(B);
+		break;
+	case 3:
+		A.subtract(B);
+		break;
+	}
+}
+	while(choice!=0);
+return 0;
+}