A+B: When the Stars of Humanity Shined Dedicated to all the pioneers of "over-engineering" on the A+B Problem. Prologue: One Problem, Ten Thousand Ways to Flex In the corners of countless OJs (Online Judges), there lies a problem named A+B Problem . It has only a single line of requirement: Input two numbers, output their sum. Yet, warriors picked up their algorithmic weapons and launched an assault on a seemingly impenetrable "simple" fortress. This is a chro...