https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c/
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1318. Minimum Flips to Make a OR b Equal to c
题目叙述：给三个正整数a,b,c，回传(a || b)==c的最小翻转数。
翻转可将任意位置二元值的0,1调换。
Example 1:
https://assets.leetcode.com/uploads/2020/01/06/sample_3_1676.png
Input: a = 2, b = 6, c = 5
Output: 3
Explanation: After flips a = 1 , b = 4 , c = 5 such that (a OR b == c)
Example 2:
Input: a = 4, b = 2, c = 7
Output: 1
Example 3:
Input: a = 1, b = 2, c = 3
Output: 0
解题思路：
将c数与1做and，取出最右边的数是否为0，
如果是0判断a,b是否为1，是的话进行反转，
如不是0判断同样判断a,b，同时为0时反转一次。
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