Quiz Entry - updated: 2026.07.10
What does a & b do in C (bitwise AND)? What is 0x69 & 0x55 (01101001 & 01010101)?
Bitwise AND sets each result bit to 1 only where both inputs have a 1 — so 0x69 & 0x55 = 0x41.
01101001 (0x69)
& 01010101 (0x55)