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In LLP world, there is a hero called Teemo and his attacking can make his enemy Ashe be in poisoned condition. Now, given the Teemo's attacking ascend 阅读全文
posted @ 2017-05-24 23:08
hellowOOOrld
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You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] 思路： 层次遍历，每一层选出当前层最大值。 阅读全文
posted @ 2017-05-24 20:32
hellowOOOrld
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A sequence of number is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the 阅读全文
posted @ 2017-05-24 20:11
hellowOOOrld
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Suppose you have N integers from 1 to N. We define a beautiful arrangement as an array that is constructed by these N numbers successfully if one of t 阅读全文
posted @ 2017-05-24 17:09
hellowOOOrld
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