Day 11/45 #SDESheetChallenge 🚀
✅ Find the Intersection Point of Y Linked Lists
✅ Detect a Loop in a Linked List
✅ Reverse Linked List in Groups of K
Learned cycle detection using Fast & Slow Pointers and strengthened my understanding of linked list pointer manipulation.
#DSA
Day 10/45 #SDESheetChallenge 🚀
✅ LC 19 - Remove Nth Node From End
✅ LC 2 - Add Two Numbers
✅ LC 237 - Delete Node in a Linked List
Learned Fast & Slow Pointers, carry handling in linked lists, and O(1) node deletion.
@striver_79@takeUforward_#DSA#LeetCode
Day 8/45 #SDESheetChallenge 🚀
✅Largest Subarray with K Sum
✅Count Subarrays with XOR K
✅Longest Substring Without Repeating Characters
Solved all three using brute-force approaches and understood the core logic behind each problem.
@striver_79@takeUforward_#DSA#LeetCode
Day 7/45 #SDESheetChallenge 🚀
✅ LC 1 - Two Sum
✅ LC 18 - 4 Sum
✅ LC 128 - Longest Consecutive Sequence
Learned sorting + two pointers for 4 Sum and used HashMap to find the longest consecutive sequence.
@striver_79@takeUforward_#DSA#LeetCode
Day 5/45 #SDESheetChallenge 🚀
✅ LC 74 - Search in a 2D Matrix
✅ LC 50 - Pow(x, n)
✅ LC 169 - Majority Element
Learned Binary Search on matrices and solved Majority Element using sorting.
@striver_79@takeUforward_#DSA#LeetCode
Day 4/45 #SDESheetChallenge 🚀
✅ LC 287 - Find the Duplicate Number
✅ Find the Repeating and Missing Number
✅ Count Inversions
Learned Cyclic Sort, frequency-based counting, and how inversions measure disorder in an array.
@striver_79@takeUforward_#DSA#LeetCode