49 lines
697 B
Markdown
49 lines
697 B
Markdown
---
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layout: page
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title: Reverse String
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last_solved: 2020-06-01
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category: string
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leetcode_url: https://leetcode.com/problems/reverse-string/
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status: Solved
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---
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##### Problem
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{% highlight text %}
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Example 1:
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Input: ["h","e","l","l","o"]
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Output: ["o","l","l","e","h"]
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{% endhighlight %}
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##### Solution
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{% highlight python %}
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def reverseString(self, s: List[str]) -> None:
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"""
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Do not return anything, modify s in-place instead.
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"""
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if not s: return
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start = 0
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end = len(s)-1
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while start<end:
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tmp = s[start]
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s[start] = s[end]
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s[end] = tmp
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start+=1
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end-=1
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{% endhighlight %}
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![image1]() |