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Binary number to decimal number
School Accuracy: 49.6% Submissions: 982 Points: 0

Given a Binary Number B, find its decimal equivalent.
 

Example 1:

Input: B = 10001000
Output: 136

Example 2:

Input: B = 101100
Output: 44

 

Your Task:
You don't need to read or print anything. Your task is to complete the function binary_to_decimal() which takes the binary number as string input parameter and returns its decimal equivalent.

 

Expected Time Complexity: O(K * Log(K)) where K is number of bits in binary number.
Expected Space Complexity: O(1)

 

Constraints:
1 <= number of bits in binary number  <= 16

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Binary number to decimal number

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