Solved by sansen

#	Title	# Solved	Avg. Tries
3836	Coin Collecting	30	3.37
18314	Non-Decreasing Subsequences	54	3.65
18758	Fast as Ryser	18	2.44
20631	All your base are belong to us	19	2.58
21763	Bingo	162	3.33
21764	Histogram Sequence 2	99	1.73
21765	Opinion Pool	78	1.81
25952	Rectangles	47	4.36
30095	GCD SUM	18	3.44
30809	Yet Another Coin Problem	6	1.67
31395	Number of Sorted Contiguous Subsequences	511	2.02
31396	Overload Prevention	92	2.00
31398	Gas Station	50	2.30
31399	Aris, Clean Up! (Hard)	47	4.68

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