Solved by bachhoangxuan

#	Title	# Solved	Avg. Tries
22340	XOR 10	16	1.25
23066	Stones	25	2.64
27180	Тяжелый груз	8	10.63
29196	Not Decimal	579	2.47
29197	Taekwondo	493	2.89
29198	Yet Another String Problem in C	446	2.00
29199	Archery Duel	190	2.15
29200	Reducing the Number of Problems	167	3.51
29201	K-Sorting Game	46	5.57
29202	Backpack	60	4.58
29203	Theme Park	34	4.09
29204	Hide and Seek in KSA	18	3.89
30854	Farm	32	2.28
30856	K-Lottery	38	3.97
30862	Tandem Copy	17	4.94
31432	Not Prime: Save the KSA	524	3.79
31433	KSA String	264	4.55
31434	Carrot Click Game	191	2.92
31435	Get the Dormitory Passcode	77	3.57
31436	Study Plan	40	2.80
31437	Two Cats	28	5.18
31438	Sign is B0	40	3.53
31439	Linear Algebra: Concepts and Methods	19	3.53
31440	Largest Rectangle in a Histogram and Queries 2	23	3.74

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