CODEWITHSUNDEEP
swiftswift4
Vera Boukhonine
Vera Boukhonine

Reputation: 21

Binary operator '+' cannot be applied to operands of type 'Int' and '[Int]'

I'm trying to write code that will update my array and give total pay based on the daily pay. I'm getting an error about binary operators so how do I fix this line code so that doesn't happen.

for day in stride(from: 1, to: 31, by: 1)
{
    dailyPay[day] = [Int(pay)]
    pay*=2
    if(day==1)
    {
        totalPay[day] = Int(pay)
    }
    else
    {

        totalPay[day] = totalPay[day-1]+dailyPay[day]//The problem is Here

        print("\(heade) \(day) \(head) \(dailyPay[day]) \(total) \(totalPay[day])")
    }

Upvotes: 1

Views: 460

Answers (1)

Charles Srstka
Charles Srstka

Reputation: 17040

You don't show the declarations of your variables, but it appears that totalPay is an array of Ints, whereas dailyPay is a two-dimensional array of arrays of Int. So, totalPay[day-1] will be an Int, whereas dailyPay[day] will be an [Int], or an array of Ints. The error you're getting therefore means exactly what it says; you can't use + to add an Int and an array.

From your code, it appears that dailyPay is probably meant to be a plain old array of integers, like totalPay. So you could fix this by changing the declaration, whereever it is, from:

var dailyPay: [[Int]]

to:

var dailyPay: [Int]

Then, change the assignment to:

dailyPay[day] = Int(pay)

and things should work.

Sidenote: Your for loop is needlessly complex. There's no need for stride, when you can just:

for day in 1...31

Upvotes: 3

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