Rohit Kumar

🗓️ Day 6 – #SDESheetChallenge ✅ Pow(x, n) Learned Binary Exponentiation Reduced time complexity from O(n) to O(log n) ✅ Majority Element Explored Brute Force, HashMap, and Moore's Voting Algorithm #DSA #Java #SDESheetChallenge @striver_79 @takeUforward_

🗓️ Day 5 – #SDESheetChallenge ✅ Search in a 2D Matrix Learned how to optimize from O(m×n) brute force to O(m log n) using Binary Search. #DSA #Java #LeetCode @striver_79 @takeUforward_

🗓️ Day 4 – #SDESheetChallenge Today's progress: ✅ Find the Duplicate Number I spent extra time understanding the approach and solution. Remaining: ⏳ Find the Repeating and Missing Number ⏳ Inversion of Array Will continue tommorow. @takeUforward_ @striver_79

Day 3 of the #SDESheetChallenge ✓ Rotate matrix by 90 degrees ✓ Merge Overlapping Subintervals ✓ Merge two sorted arrays without extra space 🔗 Sheet Link: takeuforward.org/dsa/strivers-s… #SDESheetChallenge @striver_79 @takeUforward_

🗓️ Day 2 – #SDESheetChallenge 📚 Topic: Arrays ✅ Kadane's Algorithm ✅ Sort an Array of 0s, 1s and 2s ✅ Stock Buy and Sell 🔗 Sheet Link: takeuforward.org/dsa/strivers-s… #DSA #StriversSDEsheet #45DaysOfCode @striver_79 @takeUforward_

✅ Day 1 Completed – #SDESheetChallenge Today's learnings: • Modifying data during traversal can lead to incorrect results. • Extra space can often be reduced by reusing existing data structures. • Set Matrix Zeroes ✅ • Need to revisit Next Permutation @takeUforward_

Challenge Accepted! Starting my #SDESheetChallenge journey today. Goal: Stay consistent, solve problems daily, and strengthen my DSA fundamentals. Day 0 ✅ @takeUforward_ #TakeUForward #DSA #Coding