Question

How to sum two binary strings in Swift

Answer 1

import Foundation

func addBinaryStrings(_ a: String, _ b: String) -> String {
    let num1 = Int(a, radix: 2) ?? 0
    let num2 = Int(b, radix: 2) ?? 0
    let sum = num1 + num2
    
    return String(sum, radix: 2)
}

let a1 = "11"
let b1 = "1"
print(addBinaryStrings(a1, b1)) 

let a2 = "1010"
let b2 = "1011"
print(addBinaryStrings(a2, b2)) 



/*
run:

100
10101

*/

 

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