題目連結:
https://leetcode.com/problems/minimum-sum-of-four-digit-number-after-splitting-digits/
參考解法:
https://blog.csdn.net/qq_45124566/article/details/124070992
func minimumSum(_ num: Int) -> Int {
var arr: [Int] = []
var tmp = num
while tmp > 0 {
let val = tmp % 10
arr.append(val)
tmp = tmp / 10
}
arr.sort(by: <)
return (arr[0] + arr[1]) * 10 + (arr[2] + arr[3])
}