摘要： description: Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two li 阅读全文

摘要： description: check whether the (){}[] is valid(is pair) Note: Example: my answer: "感恩" my answer 大佬的answer： class Solution { public: bool isValid(stri 阅读全文

摘要： 钱钱钱钱钱钱钱钱 阅读全文

摘要： description: Given a linked list, remove the n th node from the end of list and return its head. Note: Given n will always be valid. Example: my answe 阅读全文

摘要： description: Given an array nums of n integers and an integer target, are there elements a, b, c, and d in nums such that a + b + c + d = target? Find 阅读全文

摘要： description: Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the s 阅读全文

摘要： description: Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array whic 阅读全文

摘要： description: Given a string containing digits from 2 9 inclusive, return all possible letter combinations that the number could represent. A mapping o 阅读全文

摘要： abstract 让机器去和人类自然的交谈是具有挑战性的。最近的任务型对话系统需要创造几个部分并且通常这需要大量的人工干预，或者需要标注数据去解决各部分训练的问题。在这里我们提出了一种端到端的任务型对话系统，它采取了一种基于管道框架的新颖的收集对话数据的方法。这个方法允许我们轻松实现对话系统而不用过 阅读全文

摘要： description: Write a function to find the longest common prefix string amongst an array of strings. 找到几个字符串的最大前缀，英语不好是硬伤gg prefix string 前缀！！！！！ If th 阅读全文