Practice Problems

Problem of the Day: Integer Square Root — keep your streak alive!

Practice Problems — bitwise

#ProblemTopicsDifficulty
432 Check Bit K bitwise 800
433 Flip Bit K bitwise 800
27 Ones in Binary math bitwise 900
226 Power of Two math bitwise 900
430 Lowest Set Bit bitwise 900
431 Largest Power of Two Within math bitwise 900
225 Flips to Convert bitwise 1100
434 Power of Four math bitwise 1100
223 The Lonely Number bitwise 1200
435 Mirror the Bits bitwise 1200
459 All Gray Codes bitwise 1200
181 XOR of 1..N math bitwise 1300
228 Swap Neighbouring Bits bitwise 1300
229 N-th Gray Code math bitwise 1300
266 Range XOR Queries bitwise prefix-sums 1300
281 Classic Nim math bitwise games 1500
457 Fairest Split bitwise brute-force 1500
224 Two Lonely Numbers bitwise 1600
227 Maximum XOR of a Pair bitwise 1800
576 Maximum XOR of a Subset bitwise linear-algebra 2000
622 Maximum XOR Subarray bitwise trie 2000
577 K-th Smallest XOR Value bitwise linear-algebra 2200
860 Bounded XOR Count bitwise digit-dp 2200