Data-Structure:queue

#	ID	Name	Difficulty	Solver
1	abc247_d	G. Cylinder	468	10573
2	abc379_d	G. Home Garden	745	7628
3	abc005_3	C. おいしいたこ焼きの売り方	840	6993
4	abc216_d	G. Pair of Balls	1039	7463