text: //write a program to send values by the call by value
  #include<stdio.h>
  main()
  {
  int x,y,change(int,int);
  printf("Enter values of x and y");
  scanf("%d %d",&x,&y);
  change(x,y);
  printf("In main() x=%d and y=%d",x,y);
  }
  change(int s,int t)
  {
  int k;
  k=s;
  s=t;
  t=k;
  printf("\n In change() x=%d and y=%d",s,t);
  }
  