Friday 23 March 2012

Program in c to swap the value of two no’s without using third variable



#include<stdio.h>
#include<conio.h>Program in c to swap the value of two no’s without using third variable
void main()
{
  int a,b;
  clrscr();
  printf(“ input two variable a and b:\n”);
  scanf(“%d%d”,&a,&b);
  a=a+b;
  b=a-b;
  a=a-b;
  printf(“swap of value\na=%d\nb=%d”,a,b);
  getch();
}
output:
input two variables a and b:
7
9
swap of value
a=9
b=7

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