md-file addendum: Foreword + 11 pages (K coins divisible, maximal square, earliest moment, skyline, matching subseqs, KMP, count rectangles, non-overlapping intervals, reorganize string, critical connections, weighted reservoir) + 5 better-version sections (max-in-rotated, one-row edit distance, Tarjan SCC, sweep-line rooms, task scheduler simulation) · arpanpathak/AdvancedAlgorithmPatterns@c8e6ee9