随笔分类 -  思维

摘要：Description Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party wh 阅读全文

摘要：http://acm.hdu.edu.cn/showproblem.php?pid=2802 分析：一猜这道题就该是规律，就是怎么样也没想到周期那么大（4018），我的悲伤比它还大（%>_<%） #include <iostream> #include <stdio.h> #include <str 阅读全文

摘要：http://acm.hust.edu.cn/vjudge/contest/121398#problem/B #include<stdio.h> #include<string.h> #include<math.h> #include<queue> #include<algorithm> using 阅读全文

摘要：DESCRIPTION Given a number sequence [3,7,22,45,116,...][3,7,22,45,116,...]. Please tell me the kk-th number. DESCRIPTION Given a number sequence [3,7, 阅读全文