번호	제목
18640	AI
18641	Bitwise Automaton
18642	Challenge
18643	Game of Hex
18644	Marketing
18645	Graph Measurement
18646	Quicksort
18647	Spaceship
18648	Three-Step Tunnels
18649	Lowest Unique
18650	Erase Nodes
18651	Linear Congruential Generator
18652	Fibonacci Strikes Back
18653	Honeycomb
18654	Power of Function
18655	Cosmic Cleaner
18656	Quicksort
18657	Routes
18658	Square Substrings
18659	Sticks