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Sum of binary numbers

I have to write this code : the inputs are two binary numbers (for example: 101 and 010) and the output has to be the binary sum of those two numbers ( 111) . I'm not allowed to use any built-in function for this exercise and the things I can use are while-for loop

22nd Nov 2021, 7:27 PM
Nikki
5 odpowiedzi
+ 2
Nikki, It doesn't matter, what matters is all the digits are valid for the number base, for binary this means there should be no digits greater than 1. Assuming you take the inputs as string and you made sure all digits are valid. Measure the length of the string. Per your example '101' length is 3. Now you calculate 2 raised to the power of length - 1. Thats 2 ** (3 - 1) => 4 (the multiplier) Then you run through the string from the beginning using a loop. Divide the multiplier by 2 on each loop iteration digit multiplier result 1 * 4 4 0 * 2 0 1 * 1 1 So far you get it right?
22nd Nov 2021, 8:44 PM
Ipang
+ 2
Yes I got it Thank you so muchhh ! Ipang
22nd Nov 2021, 8:47 PM
Nikki
+ 2
Okay good luck with the code 👍
22nd Nov 2021, 8:50 PM
Ipang
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Do you know how to convert binary number into decimal? I think you need to research on that subject to solve this.
22nd Nov 2021, 8:04 PM
Ipang
+ 1
Yes I know how . But what if the binary number starts with zero ? How can I convert it into decimal then ? Ipang
22nd Nov 2021, 8:26 PM
Nikki