Day 10 of the SDESheetChallenge by takeUforward completed! Smashed 3 core SDE sheet Linked List problems.
Mastered Remove Nth Node From End of List (Medium) using the two-pointer (fast/slow) approach to locate the target node preceding it in a single pass.
Solved Delete Node in a Linked List (Medium) in O(1) time by copying the next node’s value and skipping it, and Add Two Numbers (Medium) using a standard pointer traversal with a carry-over accumulator.
System Design: Revised foundational technologies including caching patterns, load balancers, and message queue architectures.
Next Day Goal
Continue SDE Sheet Linked List section.
System Design: Study replication architectures and database sharding.