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

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

Comments (1)

  • aditya singh

    Correct answer is B

    eg:

    a=5; b=3;

    a = 5 + 3 ans. 8

    b = 8 – 3 ans. 5

    a = 8 – 5 ans. 3

    final result

    a = 3;

    b = 5;

    swap complete

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