Checkpoint8 min
Bit Manipulation Checkpoint
Operator semantics, XOR identities, and recognizing bit-trick opportunities.
Question 1 of 8
Why does XOR-folding an entire array solve Single Number (every element appears twice except one)?
Operator semantics, XOR identities, and recognizing bit-trick opportunities.
Why does XOR-folding an entire array solve Single Number (every element appears twice except one)?