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位运算 翻转数位
You have an integer and you can flip exactly one bit from a 0 to a 1. Write code to find the length of the longest sequence of 1s you could create. Example 1: Input: num = 1775(110111011112)Output: 8Example 2: Input: num = 7(01112)Output: 4 来源：力扣（LeetCo