Routing Back to C [Part 3]: A Hash Table That Can Grow
Part 3 of Routing Back to C. A hash table in plain C with chaining, buckets, djb2, collisions, a working resize, and valgrind at the end to prove nothing leaks.
Programming
Routing Back to C [Part 2]: A Linked List, One Node at a Time
Part 2 of Routing Back to C. A singly-linked list in plain C, with diagrams for every malloc, every pointer move, and every free.
Routing Back to C [Part 1]: Judgment Is the Last Expensive Thing
LLMs killed the cost of typing code. The bottleneck is now judgment, and judgment needs to know what's underneath. Part 1 of a six-part series where I rebuild the things every language hides from you, in C.
FEN Strings: How Chess Positions Fit in One Line
FEN (Forsyth-Edwards Notation) describes any chess position as a single line of text. Here's how it works, field by field, with ASCII boards and worked examples.