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添加 344.反转字符串 Swift版本

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极客学伟
2021-09-10 17:21:54 +08:00
parent e9f48c211a
commit c33f8452a8
1 changed files with 10 additions and 2 deletions
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12
problems/0344.反转字符串.md
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@ -206,6 +206,7 @@ var reverseString = function(s) {
Swift:
```swift
// 双指针 - 元组
func reverseString(_ s: inout [Character]) {
var l = 0
var r = s.count - 1
@ -216,11 +217,18 @@ func reverseString(_ s: inout [Character]) {
r -= 1
}
}
// 双指针法 - 库函数
func reverseString(_ s: inout [Character]) {
var j = s.count - 1
for i in 0 ..< Int(Double(s.count) * 0.5) {
s.swapAt(i, j)
j -= 1
}
}
```
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