Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Q.

Which is the correct sequence statements that swaps values of two statements?

A a=a+b; a=a-b; b=a-b;
B a=a+b, b=a-b; a=a-b;
C a=a-b; a=a+b; b=b-a;
D None of these
Answer & Explanation
Option: [B]

Let us test this with an example:

Let, a=20 and b=40. After swapping them a=40 and b=20

a=a+b; a=20+40=60;

b=a-b; 60-40=20;

a=a-b; 60-20=40;

Your Valuable Comments Please...

Useful Computer Science EBooks