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.
Credits:Special thanks to @fujiaozhu for adding this problem and creating all test cases.
见程序注释
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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.
Credits:Special thanks to @fujiaozhu for adding this problem and creating all test cases.
见程序注释