摘要：
A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictly alternate between positive and negative. The 阅读全文
posted @ 2017-06-27 17:53
hellowOOOrld
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摘要：
Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. For example, given n = 12, 阅读全文
posted @ 2017-06-27 14:50
hellowOOOrld
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Given an unsorted array of integers, find the length of longest increasing subsequence. For example,Given [10, 9, 2, 5, 3, 7, 101, 18],The longest inc 阅读全文
posted @ 2017-06-27 14:06
hellowOOOrld
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