Question

write a c program to swap the values of interger variables "a" and "b" and display them​

Answer 1

Answer:

C Program to swap two numbers without third variable

#include<stdio.h>

int main()

{

int a=10, b=20;

printf("Before swap a=%d b=%d",a,b);

a=a+b;//a=30 (10+20)

b=a-b;//b=10 (30-20)

a=a-b;//a=20 (30-10)

Answer 2

Answer:

#include <stdio.h>

#include <conio.h>

void main ()

{

int a,b;

printf ("enter the value of a and b");

scanf ("%d%d",&a,&b);

a=a+b;

b=a-b;

a=a-b;

printf ("\n after swap it will be=%d%d",a,b);

getch ();

}