Reverse String Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh" c++ solution1: class solution1: { public: string reverseString(string s){ int left = 0,right = s.size() - 1; while(left < right){ char t = s[left]; s[left++] = s[right]; s[right--] = t; } return s; } }; C++ solution2: class Solution{ public: string reverseString(string s){ int left = 0,right = s.size() - 1; while(left < right) { swap(s[left++],s[right--]); } return s; } };
怕什么真理无穷,进一寸有一寸的欢喜。---胡适