Answer / marutikutre

x = y | (y=x)-x;

&
a=a*b/(b=a); provided either of a or b is not 0

Answer / adi

answer no. 3 wont work in case of b=0!!!

Answer / mrx

In assembly language you could use "xchg" instruction witch
swaps the two variables in one instruction.

/* swaps %dest <-> %source */
xchg %dest, %source


/* inline assambly example for C language */
void swap(int register *x, register int *y)
{
asm("xchg %0, %1;" \
: "=r"(*x), "=r"(*y)
: "0"(*x), "1"(*y)
);
}

This is the fastest method you can achieve in hand
optimization. I think C compiler will do the same trick if
possible.

Answer / simhachalam lakkakula

Answer 4 get fail for the following values

Before: a= 219455078, b= -747788332
After: a= -875186568, b= 1

Answer / simhachalam lakkakula

Answer 4
Logic:
a=a*b;
b=a/b;
a=a/b;

get fail for the following values

Before: a= 219455078, b= -747788332
After: a= -875186568, b= 1

Answer / suresh bhandari

---------------------
a=a*b
b=a/b
a=a/b
---------------------
a=a+b
b=a-b
a=a-b
----------------------
a = a Xor b
b= a Xor b
a= a Xor b
----------------------
all above three methods are correct, i hv checked...

Answer / d

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


is this wrong?

Answer / rahul

I am new in C/C++.
How to write the program for second answer. Does it
automatically convert the numbers in binary by using ^ sign.

:}

Answer / devarajan.k

a[12]=name
b[20]=name
Here the size 12 & 25 has no effect hence we can change
the size
a[]=name
b[]=name

Answer / xyz

Congrats to all guys who have tried this.Everything u post
here is correct

Cluster head selection in Wireless Sensor Network using C programming language.

0 Answers  

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0 Answers  

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6 Answers  

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2 Answers  

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2 Answers  

how to delete an element in an array

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1 Answers  

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