list of classical problems

97942-shanghai-2011-preliminary-1

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
2713	Can you answer these queries IV	60	4058	17.43	21 21
9511	24-Puzzle		23	21.85
9512	Bombing		83	22.69	17 17
9513	Game		17	28.81
9515	Dwarven Sniper´s Hunting		10	56.00
9516	XOR Equations		14	18.07
9517	Unlock the Cellphone		11	26.88
9518	The Time of Day	1	37	24.49	17 34
9519	Distinct Submatrices	1	23	20.74	50 50
9520	Tanks	1	14	12.41	34 34