227. Sum of Two Integers

MediumBit Manipulation

Given two integers x and y, return the sum of the two integers without using the operators + and -.

Examples

Input: 1 2

Output: 3

Explanation: 1 + 2 = 3 computed with XOR (sum bits) and AND<<1 (carry) instead of +.

Constraints

  • -1000 <= a, b <= 1000
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