Solved by hhe4488

#	Title	# Solved	Avg. Tries
1759	Securing the Barn	28,038	2.23
1753	최단경로	36,800	3.83
1541	잃어버린 괄호	43,135	1.83
1300	K번째 수	13,643	2.63
1283	IZBORNIK	2,081	2.44
1260	DFS와 BFS STANDARD	74,734	2.61

12