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Pattern 14 of 15
Master bit manipulation including XOR tricks, counting bits, power of two checks, and bit masking. Essential for optimization and low-level problems.
4
60 min
Check if number is power of two or four using bitwise operations.
Use XOR properties to find single number, missing number, and duplicates.
Count bits for range of numbers using DP with bit manipulation optimization.
Count number of 1 bits (Hamming weight) using bitwise AND operations.
Access theory, code examples, and practice problems.
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