随笔分类 -  数学思维

HDU-1060(简单数学)
摘要：Leftmost DigitTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Problem DescriptionGiven a positive integer N, you should... 阅读全文
posted @ 2015-08-16 11:49 FunPR 阅读(188) 评论(0) 推荐(0)
HDU-1018(简单数学)
摘要：Big NumberProblem DescriptionIn many applications very large integers numbers are required. Some of these applications are using keys for secure trans... 阅读全文
posted @ 2015-08-13 21:27 FunPR 阅读(128) 评论(0) 推荐(0)
Gym 100187B-A Lot of Joy
摘要：题意：给一个字符串，将每个字符分开放进两个口袋，每次从两个口袋分别拿出一个字符，如果相同则开心，问开心的次数期望是多少。分析：数学期望题，然而这是我最不拿手的。。。最后答案是每个字符在字符串出现的次数/字符串长度的和。 1 #include 2 #include 3 #include 4 #i... 阅读全文
posted @ 2015-07-21 23:31 FunPR 阅读(314) 评论(0) 推荐(0)