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题目： In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original d 阅读全文
posted @ 2019-04-14 23:27
silentteller
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题目： The demons had captured the princess (P) and imprisoned her in the bottom-right corner of a dungeon. The dungeon consists of M x N rooms laid out 阅读全文
posted @ 2019-04-14 16:36
silentteller
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题目： Find the sum of all left leaves in a given binary tree. Example: 分析： 给定一颗二叉树，求左叶子节点的和。 重点在于如何判断左叶子节点，如果一个节点的left存在，且left的left和right都为空，那么我们就可以将这个节 阅读全文
posted @ 2019-04-14 15:51
silentteller
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题目： Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has 阅读全文
posted @ 2019-04-14 15:38
silentteller
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题目： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, ca 阅读全文
posted @ 2019-04-14 15:22
silentteller
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