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Given a sorted integer array where the range of elements are in the inclusive range [lower, upper], return its missing ranges. For example, given [0, 阅读全文
posted @ 2017-12-18 10:11
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Given two strings S and T, determine if they are both one edit distance apart. 阅读全文
posted @ 2017-12-18 09:45
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Given a string, find the length of the longest substring T that contains at most 2 distinct characters. For example, Given s = “eceba”, T is "ece" whi 阅读全文
posted @ 2017-12-18 08:21
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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 @ 2017-12-18 07:54
逸朵
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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 @ 2017-12-18 07:41
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Given a binary tree where all the right nodes are either leaf nodes with a sibling (a left node that shares the same parent node) or empty, flip it up 阅读全文
posted @ 2017-12-18 06:56
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There is a new alien language which uses the latin alphabet. However, the order among letters are unknown to you. You receive a list of non-empty word 阅读全文
posted @ 2017-12-18 04:05
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There is a fence with n posts, each post can be painted with one of the k colors. You have to paint all the posts such that no more than two adjacent 阅读全文
posted @ 2017-12-18 02:15
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Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 阅读全文
posted @ 2017-12-18 01:28
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