Code & Func

2017-12-16

第80天。

Write a function that takes a string as input and returns the string reversed.

Example: Given s = “hello”, return “olleh”.

水的不能再水的题目.

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string reverseString(string s) {
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    int i = 0,j = s.size() - 1;
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    while(i < j) {
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        swap(s[i++],s[j--]);
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    }
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    return s;
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}

如果用python话：

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def reverseString(self, s):
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    """
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    :type s: str
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    :rtype: str
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    """
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    return s[::-1]

慢慢来会比较快!