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摘要： https://leetcode.com/problems/lemonade-change/ At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and ord 阅读全文

摘要： https://leetcode.com/problems/assign-cookies/ Assume you are an awesome parent and want to give your children some cookies. But, you should give each 阅读全文