摘要：
https://leetcode.com/problems/remove element/ cpp class Solution { public: int removeElement(vector& nums, int val) { if(nums.empty()) return 0; int L 阅读全文
摘要：
https://leetcode.com/problems/remove duplicates from sorted array/ cpp class Solution { public: int removeDuplicates(vector& nums) { if(nums.empty()) 阅读全文
摘要：
https://leetcode.com/problems/reverse nodes in k group/ python版本 阅读全文
摘要：
https://leetcode.com/problems/swap nodes in pairs/ python版本 阅读全文
摘要：
https://leetcode.com/problems/merge k sorted lists/ python版本 阅读全文
摘要：
https://leetcode.com/problems/generate parentheses/ python版本 阅读全文