PROGRAM-7

//Program for swapping two numbers by call by value

#include

#include

void swap(int, int);

void main()

{

 clrscr();                                                                                       

 int x, y;

 printf("Enter the value of x");

 scanf("%d", &x);

 printf("Enter the value of y");

 scanf("%d", &y);

 swap(x,y);

 getch();

}

 void swap(int x, int y)

{

 int temp;

 temp=x;

 x=y;

 y=temp;

 printf("The values after swapping are x=%d   y=%d", x,y);

}

Algorithm

·                     Start

·                     Declare x, y as integer

·                      Write(“the value of x")

·                      Read(“the value of x”)

·                      Write("the value of y")

·                      Read("the value of  y”)

·                      swap(x,y) (call function)

·                      stop

·                      void swap(int x, int y) (read function)

·                     Declare temp as integer

·                      temp=x

·                      x=y

·                      y=temp

·                      Read("The value of x and y after swaping”)