Answer / arindam

b=(a+b)-(a=b);

Answer / shruti dengre

answer no. 6th is is correct

Answer / suseela

for ex x=10,y=20
x=x+y=30(i.e 10+20)
y=x-y=10(i.e 30-20)
x=x-y=20(i.e 30-10)

Answer / shubham

#include<stdio.h>
#imclude<conio.h>
main()
{
int a,b;
printf("enter two number");
scanf("%d%d",&a,&b);
b=a-b;
a=a-b;
b=a+b;
printf("after swaping &d",swap);
getch();
}

Answer / lokesh

a=a-b;
b=a-b;
a=a+b;

Answer / praveen kumar telluri

b=a*b/(a=b);

Answer / naveen

Using a single line statement:

a=(a+b)-(b=a)

Answer / hamsa

a=a+b;
b=a-b;
a=a-b;

ex a=2, b=4

a=2+4
b=6-4
a=6-2


ANS a=4
b=4

Answer / debjyoti talukder

a=a+b;
if(a>b)//only the smaller can b subtracted from greater...
b=a-b://...reverse is not possible
else
b=b-a;
a=a-b;

Answer / swapnil r

Swapping two variables

1. #define SWAP(x,y) x^=y^=x^=y

2. a=a+b;
b=a-b;
a=a-b;

3. use xor to swap

a = a^b
b= a^b
a= a^b
4. a=a*b;
b=a/b;
a=a/b;

write a program to Insert in a sorted list

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hello sir,is there any function in C that can calculate number of digits in an int type variable,suppose:int a=123; 3 digits in a.what ll b answer?

6 Answers