You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you nee ...
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其他好文 时间：
2020-01-20 00:24:28
阅读次数：
86
Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the sam ...
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其他好文 时间：
2020-01-19 00:06:21
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82
Given an array A of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including d ...
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其他好文 时间：
2020-01-18 13:04:21
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99
We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, ...
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其他好文 时间：
2020-01-16 12:45:23
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79
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next() will return the n ...
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其他好文 时间：
2020-01-15 23:18:13
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92
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 ...
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其他好文 时间：
2020-01-15 13:37:21
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80
Given a binary tree, count the number of uni-value subtrees. A Uni-value subtree means all nodes of the subtree have the same value. Example : Input: ...
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其他好文 时间：
2020-01-14 12:56:57
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59
如图，遇到 idea中，git commit 时 中文输入，再删除的时候 就容易乱码 解决办法： 在git安装目录下找到etc/bash.bashrc文件，在文件的最后添加： export LANG="zh_CN.UTF-8" export LC_ALL="zh_CN.UTF-8" 在Termina ...
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其他好文 时间：
2020-01-13 16:24:13
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104
Given a binary tree struct Node { int val; Node *left; Node *right; Node *next; } Populate each next pointer to point to its next right node. If there ...
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其他好文 时间：
2020-01-13 01:07:44
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93
Given an array of characters, compress it in-place. The length after compression must always be smaller than or equal to the original array. Every ele ...
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其他好文 时间：
2020-01-12 13:42:25
阅读次数：
92
