摘要：
ContestsProblemsRanklistStatusStatisticsEtaoin ShrdluTime Limit : 2000/1000ms (Java/Other)Memory Limit : 131072/65536K (Java/Other)Total Submission(s) : 59Accepted Submission(s) : 12Problem DescriptionThe relative frequency of characters in natural language texts is very important for cryptography. 阅读全文