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Benjamin Butterworth
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Benjamin Butterworth
iOS Development with Swift Techdegree Graduate 14,418 Points
Posted by Benjamin Butterworth
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Benjamin Butterworth
iOS Development with Swift Techdegree Graduate 14,418 Points

iOS Control Flow Decomposition of Problems

Hello - please disregard the name I take my education on Swift seriously ;)

I need help with generating the body of control flow statements based on a goal or exercise problem. For example:

You are given a number. Decompose number into prime factor and write it as an expression.

var number = 10 print("(number) = ", terminator: "")

var isFirst = true // how did you deduce to declare this variable?

// the i is the first value in the sequence, the 2...number is the range of sequence. I get that. But how do you deduce the rest of the body of the loop??

for i in 2...number { if number % i == 0 { while (number % i == 0) { number /= i

        if isFirst {
            isFirst = false
        } else {
            print(" * ", terminator: "")
        }

        print(i, terminator: "")
    }
}

}