C programming about interchanging two values?

Answer 1

#include stdio.h

#include conio.h

void main()

{

void intrchng(int*,int*);

int a,b;

printf("enter 1st value a:");

scanf("%d",&a);

printf("\nenter 2nd value b:");

scanf("%d",&b);

printf("\n after interchanging,outputs are\n");

intrchng(&a,&b);

printf("value of a: %d",a);

printf("value of b:%d",b);

}

void intrchng(int* ptra,int* ptrb)

{

int* temp;

temp = ptra;

ptra= ptrb;

ptrb= temp;

}

}