摘要：
Given an array ofnpositive integers and a positive integers, find the minimal length of a subarray of which the sum ≥s. If there isn't one, return 0 i... 阅读全文
posted @ 2015-06-18 16:53
tjuloading
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摘要：
Implement a trie withinsert,search, andstartsWithmethods.Note:You may assume that all inputs are consist of lowercase lettersa-z.思路： 构建一个简单的字典树，要求实现... 阅读全文
posted @ 2015-06-18 15:52
tjuloading
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