4 Which of the following code segments correctly swaps the v

4. Which of the following code segments correctly swaps the values of variables named x and y?

a.

x=y

y=temp

x=temp

b.

temp=x

x=y

y=temp

c.

x=y

temp=x

y=temp

d.

temp=x

y=x

x=temp  

Solution

ANSWER IS OPTION B

AS

temp=x ; TEMP WILL TAKE VALUE OF X HERE

x=y ; X WILL TAKE WALUE OF Y HERE

y=temp; FINALLY Y WILL TAKE VALUE OF TEMP WHICH WAS VALUE OF X

HENCE SWAPPING IS DONE