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Add two integers using bitwise operations without using + or - operators.
Example:
Input:
a = 1, b = 2Output:
3Common Mistakes:
- Not handling negative numbers correctly
- Infinite loop with negative carry in some languages
- Forgetting to shift carry left by 1
Notes:
Key insight: XOR gives sum without carry, AND gives carry positions. In Java, works with negative numbers due to two's complement.
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Add two integers using bitwise operations without using + or - operators.
Example:
Input:
a = 1, b = 2Output:
3Common Mistakes:
- Not handling negative numbers correctly
- Infinite loop with negative carry in some languages
- Forgetting to shift carry left by 1
Notes:
Key insight: XOR gives sum without carry, AND gives carry positions. In Java, works with negative numbers due to two's complement.
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Sum of Two Integers