Topic: Bit Manipulation

alleasymediumhard

alltodoattemptedfailedsolved

212 problems

#	Title	Status	Difficulty	Topics	Accept
29	Divide Two Integers	—	Medium	MathBit Manipulation	18%
67	Add Binary	—	Easy	MathStringBit Manipulation	56%
78	Subsets	—	Medium	ArrayBacktrackingBit Manipulation	81%
89	Gray Code	—	Medium	MathBacktrackingBit Manipulation	62%
90	Subsets II	—	Medium	ArrayBacktrackingBit Manipulation	59%
136	Single Number	—	Easy	ArrayBit Manipulation	76%
137	Single Number II	—	Medium	ArrayBit Manipulation	65%
187	Repeated DNA Sequences	—	Medium	Hash TableStringBit Manipulation	51%
190	Reverse Bits	—	Easy	Divide and ConquerBit Manipulation	63%
191	Number of 1 Bits	—	Easy	Divide and ConquerBit Manipulation	74%
201	Bitwise AND of Numbers Range	—	Medium	Bit Manipulation	48%
222	Count Complete Tree Nodes	—	Easy	Binary SearchBit ManipulationTree	70%
231	Power of Two	—	Easy	MathBit ManipulationRecursion	48%
260	Single Number IIIread	—	Medium	ArrayBit Manipulation	71%
268	Missing Number	—	Easy	ArrayHash TableMath	70%
287	Find the Duplicate Number	—	Medium	ArrayTwo PointersBinary Search	63%
318	Maximum Product of Word Lengths	—	Medium	ArrayStringBit Manipulation	60%
338	Counting Bits	—	Easy	Dynamic ProgrammingBit Manipulation	80%
342	Power of Four	—	Easy	MathBit ManipulationRecursion	49%
371	Sum of Two Integers	—	Medium	MathBit Manipulation	54%
389	Find the Difference	—	Easy	Hash TableStringBit Manipulation	60%
393	UTF-8 Validation	—	Medium	ArrayBit Manipulation	45%
397	Integer Replacement	—	Medium	Dynamic ProgrammingGreedyBit Manipulation	36%
401	Binary Watch	—	Easy	BacktrackingBit Manipulation	56%
405	Convert a Number to Hexadecimal	—	Easy	MathBit Manipulation	51%
421	Maximum XOR of Two Numbers in an Array	—	Medium	ArrayHash TableBit Manipulation	53%
461	Hamming Distance	—	Easy	Bit Manipulation	76%
464	Can I Win	—	Medium	MathDynamic ProgrammingBit Manipulation	30%
473	Matchsticks to Square	—	Medium	ArrayDynamic ProgrammingBacktracking	41%
476	Number Complement	—	Easy	Bit Manipulation	70%
477	Total Hamming Distance	—	Medium	ArrayMathBit Manipulation	54%
491	Non-decreasing Subsequences	—	Medium	ArrayHash TableBacktracking	62%
526	Beautiful Arrangement	—	Medium	ArrayDynamic ProgrammingBacktracking	64%
638	Shopping Offers	—	Medium	ArrayDynamic ProgrammingBacktracking	52%
645	Set Mismatch	—	Easy	ArrayHash TableBit Manipulation	45%
672	Bulb Switcher II	—	Medium	MathBit ManipulationDepth-First Search	49%
691	Stickers to Spell Word	—	Hard	ArrayHash TableString	50%
693	Binary Number with Alternating Bits	—	Easy	Bit Manipulation	63%
698	Partition to K Equal Sum Subsets	—	Medium	ArrayDynamic ProgrammingBacktracking	38%
756	Pyramid Transition Matrix	—	Medium	Bit ManipulationDepth-First SearchBreadth-First Search	53%
762	Prime Number of Set Bits in Binary Representation	—	Easy	MathBit Manipulation	71%
779	K-th Symbol in Grammar	—	Medium	MathBit ManipulationRecursion	47%
782	Transform to Chessboard	—	Hard	ArrayMathBit Manipulation	50%
784	Letter Case Permutation	—	Medium	StringBacktrackingBit Manipulation	75%
805	Split Array With Same Average	—	Hard	ArrayMathDynamic Programming	26%
810	Chalkboard XOR Game	—	Hard	ArrayMathBit Manipulation	63%
832	Flipping an Image	—	Easy	ArrayTwo PointersBit Manipulation	83%
847	Shortest Path Visiting All Nodes	—	Hard	Dynamic ProgrammingBit ManipulationBreadth-First Search	65%
861	Score After Flipping Matrix	—	Medium	ArrayGreedyBit Manipulation	80%
864	Shortest Path to Get All Keys	—	Hard	ArrayBit ManipulationBreadth-First Search	54%

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