Given an octal number as input, we need to write a program to convert the given octal number into equivalent decimal number.
Input : 67 Output : 55 Input : 512 Output : 330 Input: 123 Output: 83
The idea is to extract the digits of given octal number starting from right most digit and keep a variable dec_value. At the time of extracting digits from the octal number, multiply the digit with the proper base (Power of 8) and add it to the variable dec_value. At the end, the variable dec_value will store the required decimal number.
If the octal number is 67.
dec_value = 6*(8^1) + 7*(8^0) = 55
Below diagram explains how to convert octal number ( 123 ) to equivalent decimal value:
Below is the implementation of above idea.
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