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Integers in Strings ​

Problem Description ​

Given a string A, consisting of comma-separated positive integers.

Extract the given integers from the string and return an integer array consisting of the integers present in the string.

Note: All given integers will fit in a 32-bit signed integer.

Problem Constraints

1 <= |A| <= 10^5

Input Format

The first and only argument is a string A.

Output Format

Return an integer array.
The array should contain all the integers in the same order as they appear in the string.

Example Input

Input 1:
A = "1,2,3"

Input 2:
A = "1,99,3"

Example Output

Output 1:
[1, 2, 3]
Output 2:
[1, 99, 3]

Example Explanation

Explanation 1:
The array is given in Example output.

Explanation 2:
The array is given in Example output.

Solution ​

swift
import Foundation

class Solution {
	func solve(_ A: inout String) -> [Int] {
        var ret = [Int]()
        for n in A.components(separatedBy:",") {
           ret.append(Int(n) ?? 0) 
        }
        return ret
	}
}

References ​