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今晚要写搜索引擎作业,搭scrapy环境,遇到了下面问题: windows下安装pywin32报错:close failed in file object destructor:sys.excepthook is missing lost sys.stderr 解决方法: 1.右键管理员身份运行cm 阅读全文
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#83. Remove Duplicates from Sorted List Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 阅读全文
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#24. Swap Nodes in Pairs Given a linked list, swap every two adjacent nodes and return its head. For example, Given 1->2->3->4, you should return the 阅读全文
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#2. Add Two Numbers You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nod 阅读全文
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#299. Bulls and Cows You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to guess what the 阅读全文
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#268. Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example 阅读全文