Accenture Coding Question 9

September 23, 2020

Coding Question 9

You are given a function, Int MaxExponents (int a , int b);

You have to find and return the number between ‘a’ and ‘b’ ( range inclusive on both ends) which has the maximum exponent of 2.

The algorithm to find the number with maximum exponent of 2 between the given range is

  • Loop between ‘a’ and ‘b’. Let the looping variable be ‘i’.
  • Find the exponent (power) of 2 for each ‘i’ and store the number with maximum exponent of 2 so faqrd in a variable , let say ‘max’. Set ‘max’ to ‘i’ only if ‘i’ has more exponent of 2 than ‘max’.
  • Return ‘max’.

Assumption: a <b

Note: If two or more numbers in the range have the same exponents of  2 , return the small number.

Example

  • Input:
    • 7
    • 12
  • Output:
    • 8

Explanation:

Exponents of 2 in:

7-0

8-3

9-0

10-1

11-0

12-2

Hence maximum exponent if two is of 8.

def countExponents(i):

    count = 0

    while i%2 == 0 and i != 0:

        count+=1

        i = i//2

    return count

def maxExponents(a, b):

    maximum, number = 0, a

    for i in range(a,b):

        temp = countExponents(i)

        if temp>maximum:

            maximum, number = temp, i

    return number

a, b = map(int,input().split())

print(maxExponents(a, b))
Output:
7 12
8