Consider the function func shown below:int func(int num) { int count = 0; while (num) { count++; num>>= 1; } return (count); }The value returned by func(435) is ________.

The function func counts the number of times num can be right-shifted by 1 until it becomes 0. This is equivalent to finding the total number of bits in the binary representation of num (i.e., $\lfloor\log_2(\text{num})\rfloor + 1$).

Convert $435$ to binary:

The binary representation $(110110011)_2$ has $9$ bits.

Trace of the loop:

• After step 1: num = 217, count = 1

• After step 2: num = 108, count = 2

• After step 3: num = 54, count = 3

• After step 4: num = 27, count = 4

• After step 5: num = 13, count = 5

• After step 6: num = 6, count = 6

• After step 7: num = 3, count = 7

• After step 8: num = 1, count = 8

• After step 9: num = 0, count = 9

The loop terminates with count = 9.

Therefore, the returned value is 9.