Day 127 of #180DaysOfCode: Single Number II 🌟 day 9/10 of bit manipulation Today, I worked on the "Single Number II" problem, where the challenge was to find the number that appears exactly once in an array, while every other number appears three times. 🔄✨ To solve this problem, I used a bitwise manipulation approach that efficiently tracks the frequency of each bit across all numbers in the array. By counting the number of times each bit is set, I identified the bits corresponding to the unique number. Any bit count that is not divisible by three corresponds to the bits of the single number. This problem was a great opportunity to deepen my understanding of bitwise operations and reinforce my skills in solving problems with optimal time complexity! 🚀💻 #180DaysOfCode #SingleNumberII #BitwiseManipulation #Optimization #ProblemSolving #Tech #Algorithms
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Day 120 of #180DaysOfCode: Power of Four 🌟 Day 6/10 of Bit Manipulation Today's challenge was about determining whether a given integer is a power of four. This problem was an excellent way to reinforce my understanding of bit manipulation and number theory. To solve it, I checked if the number has only one set bit in its binary representation and ensured that the set bit is in an even position (since powers of four have their 1-bit in positions like 1, 4, 16, etc.). This approach allowed me to achieve an efficient solution using bitwise operations. This problem was a fantastic exercise in recognizing binary patterns and applying them to solve algorithmic challenges. Excited to continue diving into more bit manipulation problems! 🚀 #180DaysOfCode #PowerOfFour #BitManipulation #CodingJourney #ProblemSolving #Tech #ContinuousImprovement #Algorithms
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Day-81 #100daysofcodingchallenge Solving the Minimize XOR problem on Leetcode was a deep dive into bitwise operations and their practical applications. The challenge required constructing a number with a minimized XOR value compared to a given number while ensuring a specific count of set bits. This problem taught me the importance of understanding binary representations and bit manipulation. By leveraging helper functions like countSetBits to determine the number of 1's in the binary representation of a number, I learned how to approach problems systematically. The solution also highlighted how to strategically set and unset bits using bitwise operators like &, |, and bit shifts. The two-pass logic—first prioritizing the bits already set in num1 and then filling in additional bits from the lowest positions—was an excellent example of optimizing for constraints while maintaining efficiency. It also reinforced the importance of combining mathematical insights with iterative logic to achieve optimal results. This problem underscored how foundational bitwise operations are in algorithmic problem-solving, particularly in low-level optimizations and scenarios involving binary constraints. #DrGVishwanathan Challenge #leetcode #ProblemSolving #BitManipulation #Algorithms
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Day 72: Unique Number and Maximum Product Today’s challenges focused on array manipulation and optimization. The first problem, "Single Number," required identifying the only number in an array that appears once, while every other element appears twice—a fun application of bitwise operations. The second, "Maximum Product Subarray," involved finding the contiguous subarray with the largest product, which tested my ability to handle negative numbers and zero efficiently. These problems helped improve my understanding of bit manipulation and dynamic subarray handling. Problem Links:- 136. Single Number:- https://lnkd.in/gtZYKCXG 152. Maximum Product Subarray:- https://lnkd.in/gX_FTuiw Github:- https://lnkd.in/gjKwWR9k #100DaysOfCode #LeetCode #C++ #Day72 #SingleNumber #MaximumProductSubarray #BitManipulation #DynamicProgramming #Algorithms #TechLearning #GrowthMindset #KeepCoding #ProblemSolving
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Day 46: Counting Bits Efficiently! Today's challenge was to count the number of set bits (1s) in the binary representation of an integer. problem link https://lnkd.in/gcmjjxBb Optimized Approach: I used a bitwise AND operation and right shift to efficiently count the set bits. By checking the least significant bit and shifting the number to the right, I could iterate through all bits and count the ones. class Solution { public int hammingWeight(int n) { int count = 0; while (n != 0) { count += (n & 1); n >>>= 1; } return count; } } Key Takeaways: Understanding bitwise operations is crucial for solving problems that involve manipulating bits. Efficiently counting set bits can be optimized using bitwise techniques. #DSA #algorithms #bitwiseoperations #codingchallenge #day46
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Day 5 of #100DaysDSA in C++: Mastered bitwise left/right shift, Inc/Dec operators, loops, and scoped variables! 💪🔍 Sharpened skills with practical programs, ready to tackle more complex challenges ahead! 💻🚀 #DataStructures #Algorithms #CPP
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Day 49: Cracking the Bit Reversal Challenge! Today's challenge was to reverse the bits of a 32-bit unsigned integer. Optimized Approach: I used bitwise operations to efficiently reverse the bits. By extracting the least significant bit, shifting the result to the left, and shifting the input to the right, I reversed the bits one by one. public class Solution { // you need treat n as an unsigned value public int reverseBits(int n) { int result = 0; for (int i = 0; i < 32; i++) { int bit = n & 1; result = (result << 1) | bit; n >>= 1; } return result; } } #DSA #algorithms #bitwiseoperations #codingchallenge #day49
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🌟 Day 44/100: #100DaysOfCode 🌟 ✨ Challenge: Power of Two 📌 Problem Solved on LeetCode with 100% Runtime Efficiency 🏆 🔍 Approach: Using bitwise operations for an optimized solution. The condition n > 0 and (n & (n - 1)) == 0 efficiently checks if a number is a power of two. 🚀 💡 Key Insight: A power of two has only one bit set in its binary representation, making bit manipulation the perfect tool for this problem! 💻 Result: Runtime: 0ms (Beats 100%) Memory Usage: Efficient solution! Another step forward in mastering algorithms and data structures! 💪 #CodeNewbie #PythonProgramming #BitManipulation #LeetCode #CodingChallenge #ProblemSolving
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🚀 Day 76 of the #100DaysLeetCodeChallenge 🚀 Today's Problem: Maximum XOR of Two Numbers in an Array Implementing Trie-based solution for efficient bitwise operations. #LeetCode #Algorithms #CodingChallenge
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🌟 Day 68 of #100DaysofCode 🌟 Solved the 𝐃𝐞𝐜𝐨𝐝𝐞 𝐗𝐎𝐑𝐞𝐝 𝐀𝐫𝐫𝐚𝐲 problem on Leetcode! 🧩⚡ This challenge revolved around decoding arrays using XOR operations. It sharpened my understanding of bitwise logic and algorithm efficiency. Each problem is a step forward in this exciting journey! 🚀💻 #CodingJourney #ProblemSolving #LeetCode #BitManipulation #TechLearning #100DaysOfCoding #ProgrammingChallenges #CodeNewbie #LearnToCode #XOROperations
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✨ Day 15 of My 20-Day LeetCode Challenge ✨ Today’s problem was a thrilling dive into bit manipulation and binary logic! 🔢💻 Challenge: Given two positive integers num1 and num2, find the positive integer x such that: 1️⃣ x has the same number of set bits (1's in its binary representation) as num2. 2️⃣ The value of x XOR num1 is minimal. Insights and Strategy: Counting set bits in binary numbers was key to understanding the problem. Strategically constructing x to minimize XOR with num1 while meeting the set bits condition added complexity. This problem combined bitwise operations with logical thinking to achieve the optimal solution. 🌟 What I Learned Today: Bitwise operators like XOR can uncover elegant solutions to seemingly intricate problems. Precision and attention to detail are critical when working with binary representations. This problem truly expanded my understanding of low-level operations! Feeling great as I move closer to completing the challenge. 💪✨ #CodingChallenge #LeetCodePOTD #BitManipulation #ProblemSolving #AlgorithmicThinking #JavaProgramming
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