usingnamespacestd; typedeflonglong(LL); typedefunsignedlonglong(ULL); constdoubleeps(1e-8); // Definition for singly-linked list. structListNode { intval; ListNode*next; ListNode(intx):val(x),next(NULL){} }; classSolution { public: ListNode*reverseKGroup(ListNode*head,intk) { vector<int...
LeetCode: 344 Reverse String 题目: Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh". 代码: 自己的: 1classSolution {2public:3stringreverseString(strings) {4stack<char>tem;5stringresult;6for( auto c : s)7tem.pus...
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