添加 0738.单调递增的数字.md Scala版本

This commit is contained in:
ZongqinWang
2022-06-15 23:15:29 +08:00
parent eddfde7c1c
commit 23c2613513

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@ -246,7 +246,37 @@ function monotoneIncreasingDigits(n: number): number {
```
### Scala
直接转换为了整数数组:
```scala
object Solution {
import scala.collection.mutable
def monotoneIncreasingDigits(n: Int): Int = {
var digits = mutable.ArrayBuffer[Int]()
// 提取每位数字
var temp = n // 因为 参数n 是不可变量所以需要赋值给一个可变量
while (temp != 0) {
digits.append(temp % 10)
temp = temp / 10
}
// 贪心
var flag = -1
for (i <- 0 until (digits.length - 1) if digits(i) < digits(i + 1)) {
flag = i
digits(i + 1) -= 1
}
for (i <- 0 to flag) digits(i) = 9
// 拼接
var res = 0
for (i <- 0 until digits.length) {
res += digits(i) * math.pow(10, i).toInt
}
res
}
}
```
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<div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>