C Increment and Decrement

What will be the output of the following code:

• 4

• 5

• 6

• 7

What is the difference between ++x and x++ in C?

• ++x increments x after the expression is evaluated, x++ increments x before.

• ++x increments x before the expression is evaluated, x++ increments x after.

• Both are the same.

• x++ is invalid syntax.

What will be the output of the following code:

• 9

• 10

• 11

• 8

If int a = 7;, what will be the result of

a++ + ++a?

• 14

• 15

• 16

• 17

What will be the output of the following code:

• 32

• 33

• 31

• 21