java实现 蓝桥杯 算法提高 Problem S4: Interesting Numbers 加强版
1问题描述ProblemDescriptionWecallanumberinteresting,ifandonlyif:1.Itsdigitsconsistsofonly0,1,2and3,andallthesedigitsoccurredatleastonce.2.Insidethisnumber,all0soccurbeforeany1s,andall2soccurbeforeany3s.Th