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You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose o 阅读全文
posted @ 2018-01-29 06:10
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Given a list of non-negative numbers and a target integer k, write a function to check if the array has a continuous subarray of size at least 2 that 阅读全文
posted @ 2018-01-28 11:13
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Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get. 阅读全文
posted @ 2018-01-28 07:06
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Given a binary search tree and a node in it, find the in-order successor of that node in the BST. Note: If the given node has no in-order successor in 阅读全文
posted @ 2018-01-28 06:44
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Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each funct 阅读全文
posted @ 2018-01-28 06:17
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Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Example 2: Note: 阅读全文
posted @ 2018-01-28 04:21
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Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example,"A man, a plan, a canal: Pan 阅读全文
posted @ 2018-01-28 03:58
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Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longestpath betwee 阅读全文
posted @ 2018-01-28 03:45
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Suppose you are at a party with n people (labeled from 0 to n - 1) and among them, there may exist one celebrity. The definition of a celebrity is tha 阅读全文
posted @ 2018-01-28 03:36
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The API: int read4(char *buf) reads 4 characters at a time from a file. The return value is the actual number of characters read. For example, it retu 阅读全文
posted @ 2018-01-28 03:26
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