번호	제목
18479	Three Indices
18480	Four Elements
18481	Five Points
18482	Six Words
18483	Seven Nevers
18484	Eight Sins
18485	Nine Judges
18486	Ten Ranges
18487	Eleven Problems
18488	Um_nik’s Algorithm
18489	String Algorithm
18490	StalinSort Algorithm
18491	FFT Algorithm
18493	Face Recognition Algorithm
18494	Petr’s Algorithm
18495	Greedy Algorithm
18496	Euclid’s Algorithm
18497	Closest Pair Algorithm
18498	Interactive Algorithm
18499	Not Our Problem