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题目： You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to guess what the number is. Each 阅读全文
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题目： Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight). For example, the 32- 阅读全文
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题目： Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), r 阅读全文