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Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4709    Accepted Submission(s): 1465Problem Description背单词，始终是复习英语的重要环节。在荒废了3年大学生涯

DescriptionIt's well known that DNA Sequence is a sequence only contains A, C, T and G, and it's very useful to analyze a segment of DNA Sequence，For example, if a animal's DNA sequence contains s

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5400    Accepted Submission(s): 1704Problem DescriptionLiyuan lives in a old apart

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3056    Accepted Submission(s): 977Problem DescriptionFor the hope of a forever lo

Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1930    Accepted Submission(s): 1046Problem DescriptionBiologists finally invent t

Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 3657    Accepted Submission(s): 987Problem DescriptionLost and AekdyCoin are frie

Time Limit: 10 Seconds      Memory Limit: 65536 KBDr. X is a biologist, who likes rabbits very much and can do everything for them. 2012 is coming, and Dr. X wants to take some rabbits to Noah's A

Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 100000/100000 K (Java/Others)Total Submission(s): 2302    Accepted Submission(s): 724Problem DescriptionGreat! Your new software

Binary-coded decimal (BCD) is an encoding for decimal numbers in which each digit is represented by its own binary sequence. To encode a decimal number using the common BCD encoding, each decimal di