Problems/Bit Manipulation Mastery

Bit Manipulation Mastery

A curated bit manipulation path: XOR, popcount, masking, subsets, and advanced bitwise logic. 36 problems across 7 progressive sections.

213Total

4Hamming Distance

5Total Hamming Distance

6Sort by Number of Set Bits

7Sum at Set Bit Indices

8Prime Set Bits

9Even and Odd Bit Positions

10Number of Bit Changes

11Minimum Bit Flips

12Count Winning Players

13Identify the Largest Outlier

14Max Possible Binary Concatenation

15Pretty Subsets Count

1Number Complement

2Base-10 Complement

4Alternating Bits Check

5Smallest Number With All Set Bits

6Find K-OR of Array

7Check Trailing Zeros in OR

9Convert to Hexadecimal

10Binary Prefix Divisible by 5

11Steps to One (Binary Reduction)

12Steps to Zero

13Add Binary Strings

14Convert Binary Linked List

15Find Subarrays With Equal Sum

16Divide Array Into Equal Pairs

17Construct Min Bitwise Array I

18Construct Min Bitwise Array II

19Encode Number

1Is Power of Two

2Is Power of Four

3Is Power of Three

5Maximum Strong Pair XOR I

6Integer Replacement

7Min Operations to Reduce to 0

8K-th Symbol in Grammar

9Alternating Binary String

10Generate Binary No Adjacent Zeros

11Concat Binary Numbers

13UTF-8 Validation

14Circular Permutation in Binary

15K-th Character in String Game I

16K-th Character in String Game II

1Range AND Query

2Score After Flipping Matrix

3Largest AND Combination

4Prefix Common Array

5Longest Nice Subarray

6Smallest Subarray Max OR

7Shortest Subarray OR ≥ K I

8Shortest Subarray OR ≥ K II

9Shortest Subarray OR ≥ K

10Bitwise ORs of Subarrays

11Minimize OR Remaining

12Minimize XOR Value

14Min Ops Values Equal to K

15Min K Consecutive Bit Flips

16Min Flips Binary Grid Palindromic

17Max Integers From Range

18Partition Value Finder

19Longest Subarray Max AND

20Count Fair Pairs

21Separate Black and White Balls

22Max Robots in Budget

23Count Good Meals

24Min Ops Binary Array to One

25Sortable Array Check

26Bitwise OR of Adjacent Elements

27AND of Triples Zero

28Set Mismatch Finder

29Find Duplicate in Array

30Score After Removals

1Max XOR of Two Numbers

2Max XOR With Element From Array

3Max Strong Pair XOR II

4Max XOR Non-Overlapping Subarrays

5Min Ops Make Array XOR = K II

6Find XOR of Numbers Twice

1Generate All Subsets

2Subsets With Duplicates

3Max Product of Word Lengths

4Check All Binary Codes of Size K

5Repeated DNA Sequences

6Letter Case Permutation

7Non-Decreasing Subsequences

8Max Length Concat Unique Chars

9Count Max Bitwise-OR Subsets

10Max Points in Archery

11Cinema Seat Allocation

12Naming a Company

13Number of Wonderful Substrings

14Pseudo-Palindromic Paths

15Longest Vowel Even Substring

16Count Nice Pairs

17Longest Awesome Substring

18Count Subsets With Even XOR I

19Count Subsets With Even XOR II

1Beautiful Arrangement

2Partition to K Equal Sum

3Matchsticks to Square

5Shopping Offers

6Special Permutations

7Max AND Sum of Array

8Max Compatibility Score

9Min Work Sessions

10Max Palindromic Product

11Fair Distribution of Cookies

12Max Rows Covered by Columns

13Min Moves Spread Stones

14Min Cost Connect Groups

15Count Subtrees Max Distance

16Stickers to Spell Word

17Parallel Courses II

18Smallest Sufficient Team

19Shortest Path Visiting All Nodes

20Split Array Same Average

21Max Transfer Requests

22Distribute Repeating Integers

23Min Time Finish All Jobs

24Maximize Score After N Ops

25Max Students Taking Exam

26Max Score Words Formed

27Ways to Wear Distinct Hats

28Optimal Account Balancing

29Unique Paths III

30Min Incompatibility

31Min Flips Matrix to Zero

32Max Good People Statements

33Favorite Companies Subset

34Maximize Grid Happiness

35Max Groups Fresh Donuts

36Number of Excellent Pairs

37Max Points with Cost

38Number of Squareful Arrays

39Alice and Bob Flower Game

41Make Distinct Characters Equal

42Adding Spaces to String

1Sum of Two Integers

2Divide Two Integers

3Find Root of N-Ary Tree

4Generalized Abbreviation

6Range Product Queries of Powers

7Min Calls to Target Array

8Min One Bit Operations

9Minimum Array End

10Kth Ancestor of Tree Node

11The Number of Good Subsets

12Transform to Chessboard

13Shortest Path to Get All Keys

14Min Unique Word Abbreviation

15Count Complete Tree Nodes

16Min Time to Visit Cell in Grid

17Min Time Visiting Disappearing

18Find Shortest Superstring

19Subtree Removal Game

20Max Groups Increasing Length

21Max Routes With Budget

22Consecutive Characters

23Count Consistent Strings

24Count Pairs of Similar Strings

25Count Square Sum Triples

26Min Ops to Collect Elements

27Two Out of Three

28Sort the People

29Circular Sentence

30Flipping an Image

31One-bit and Two-bit Characters

32Count Max Frequency

33Complete Day Pairs

34Sum of Odd Length Subarrays

35Majority Element

36Palindrome Permutation

37Longest Nice Substring

38Calculate Compressed Mean

39Ways to Reach After K Steps

40Design Memory Allocator