06 2019 档案
摘要：就是为了干倒二分题目。 题目 475. Heaters Winter is coming! Your first job during the contest is to design a standard heater with fixed warm radius to warm all the
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摘要：参考链接：https://www.cnblogs.com/Kohinur/p/8947142.html 链式前向星 vector存储
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摘要：Given an integer n, return the number of trailing zeroes in n!. Example 1: Example 2: 题目问阶乘的结果有几个零，如果用笨方法求出阶乘然后再算 0 的个数会超出时间限制。 然后我们观察一下，5 的阶乘结果是 120，
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摘要：Shuffle a set of numbers without duplicates. Example:
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摘要：Given an array nums of n integers and an integer target, are there elements a, b, c, and d in nums such that a + b + c + d = target? Find all unique q
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摘要：Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives the s
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