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题目： Reverse bits of a given 32 bits unsigned integer. 给定32位无符号整数的反转位。 Example: Input: 43261596 Output: 964176192 Explanation: 43261596 represented in 阅读全文
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题目： Given an integer array, you need to find one continuous subarray that if you only sort this subarray in ascending order, then the whole array will 阅读全文
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题目： Implement int sqrt(int x). 实现int sqrt（int x）。 Compute and return the square root of x, where x is guaranteed to be a non-negative integer. 计算并返回x的 阅读全文