Notes https://notes.himanshu.co Notes on data structures, algorithms, operating systems and the rest of core computer science — with worked dry runs, diagrams and self-test questions. en-us Sun, 27 Sep 2026 06:49:26 UTC Markdown demo: every element https://notes.himanshu.co/markdown-demo/ https://notes.himanshu.co/markdown-demo/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/markdown-demo/ Min Stack: the minimum so far https://notes.himanshu.co/min-stack/ https://notes.himanshu.co/min-stack/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/min-stack/ Operating Systems: processes, threads and context switches https://notes.himanshu.co/os-processes/ https://notes.himanshu.co/os-processes/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/os-processes/ Reverse a Linked List: three pointers, one pass https://notes.himanshu.co/reverse-linked-list/ https://notes.himanshu.co/reverse-linked-list/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/reverse-linked-list/ Two Sum: the hash map that remembers https://notes.himanshu.co/two-sum/ https://notes.himanshu.co/two-sum/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/two-sum/ Unique Paths: filling a 2D DP table https://notes.himanshu.co/unique-paths/ https://notes.himanshu.co/unique-paths/ Tue, 01 Sep 2026 00:00:00 UTC Read more at https://notes.himanshu.co/unique-paths/