摘要： Problem EAll in AllInput: standard inputOutput: standard outputTime Limit: 2 secondsMemory Limit: 32 MBYou have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way. Because of pending patent issues we will not disc 阅读全文

摘要： Problem GBig ChocolateMohammad has recently visited Switzerland. As he loves his friends very much, he decided to buy some chocolate for them, but as this fine chocolate is very expensive(You know Mohammad is a little BIT stingy!), he could only afford buying one chocolate, albeit a very big one (pa 阅读全文

摘要： Figure 1. DNA (Deoxyribonucleic Acid) is the molecule which contains the genetic instructions. It consists of four different nucleotides, namely Adenine, Thymine, Guanine, and Cytosine as shown in Figure 1. If we represent a nucleotide by its initial character, a DNA strand can be regarded as a lon. 阅读全文