Octal to Binary conversion
Detailed guide and Python implementation for the 'Octal to Binary conversion' problem.
Problem Statement
Write a function octal_to_binary(octal_str) that takes a string representing an octal number (base-8, digits 0-7) and returns a string representing its binary (base-2) equivalent. Do not include leading zeros in the output (except for input '0').
Hint: Convert each octal digit to its 3-bit binary equivalent and concatenate.
- •1 <= len(octal_str) <= 10
- •octal_str contains only digits '0' through '7'
Examples
octal_to_binary('12')'1010'
1 = 001, 2 = 010. Concatenate: 001010. Remove leading zeros: 1010.
octal_to_binary('77')'111111'
7 = 111, 7 = 111. Concatenate: 111111.
octal_to_binary('312')'11001010'
3 = 011, 1 = 001, 2 = 010. Concatenate: 011001010. Remove leading zero: 11001010.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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