LeetCode 208 Implement Trie (Prefix Tree) Implement a trie withinsert,search, andstartsWithmethods. Note: You may assume that all inputs are consist of lowercase lettersa-z. 构建字典树 View Code 参考:http://blog.csdn.net/yangliuy/article/details/46287671 http://www.cnblogs.com/huangxincheng...
2) If stack2 is empty While stack1 is not empty, push everything from satck1 to stack2. 3) Pop the element from stack2 and return it. Check each element i, i can only be pushed/ poped once at stack 1, and pushed/ poped once at stack 2. So add(), remove(), peek() still...