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题目描述 Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorite restaurants represented by strings. You need 阅读全文
posted @ 2019-09-30 22:12
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题目介绍 Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would ha 阅读全文
posted @ 2019-09-30 19:05
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问题描述 Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive i 阅读全文
posted @ 2019-09-30 00:07
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