leetcode:bits:Sum of Two Integers(371)
2016-09-01 15:00
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Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.
Example:
Given a = 1 and b = 2, return 3.
http://blog.csdn.net/qq508618087/article/details/51789576
Example:
Given a = 1 and b = 2, return 3.
http://blog.csdn.net/qq508618087/article/details/51789576
class Solution { public: int getSum(int a, int b) { while(b) { int carry = a & b; a = a ^ b; b = carry << 1; } return a; } };
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