直接打表找规律 HazelFan is given two positive integers a,ba,b, and he wants to calculate amodbamodb. But now he forgets the value of bb and only remember the value of aa, please tell him the number of different possible results. InputThe first line contains…

Euler theorem 思路:找规律 a       余数                  个数 1       0 1                     2 2       0 2                     2 3       0 1 3                  3 4       0 1 4                  3 5       0 1 2 5               4 6       0 1 2 6               4…

HazelFan is given two positive integers a,b, and he wants to calculate amodb. But now he forgets the value of b and only remember the value of a, please tell him the number of different possible results. Input The first line contains a positive integ…

Problem Description HazelFan is given two positive integers a,b, and he wants to calculate amodb. But now he forgets the value of b and only remember the value of a, please tell him the number of different possible results.   Input The first line con…

2017-09-22 21:59:43 writer:pprp HazelFan is given two positive integers a,ba,b, and he wants to calculate amodbamodb. But now he forgets the value of bb and only remember the value of aa, please tell him the number of different possible results. Inpu…

[Link]:http://acm.hdu.edu.cn/contests/contest_showproblem.php?pid=1005&cid=765 [Description] 问你a%b的结果有多少种. b未知,可以为任意数字. [Solution] b=a+1,a,a-1,a-2-. 分别对应了a%b==a,0,1,2,- 且当b = a/2时,a%b会出现重复.. 找一下a为奇数和偶数的两种情况. 发现规律就是(a-1)/2 + 2; [NumberOf WA] 0 [Reviw]…

Euler theorem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 524288/524288 K (Java/Others) Total Submission(s): 0    Accepted Submission(s): 0 Problem Description HazelFan is given two positive integers a,b, and he wants to calculate amodb.…

Rsapaper.pdf http://people.csail.mit.edu/rivest/Rsapaper.pdf [概述Abstract 1.将字符串按照双方约定的规则转化为小于n的正整数m,可能分为多段,这不是关键: 2.加密过程同解密过程,都是取明/密文的public/private次方,然后对公共的n取余数: 3.整数转化为字符串 ] A message is encrypted by representing it as a number M, raising M to a pu…

Euler theorem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 742    Accepted Submission(s): 584 Problem Description HazelFan is given two positive integers a,b, and he wants to calculate amod…

HDU6121 Build a tree 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=6121 题目意思:一棵 n 个点的完全 k 叉树,结点标号从 0 到 n - 1,求以每一棵子树的大小的异或和. 思路:一层一层的算,附上我的灵魂画作 我们来模拟计算一下上面这个非完全k叉树所有子树的大小异或之和. 对于第四层对于以该层节点为根的子树的大小为1,我们发现这一层总共有12个这样的子树,所以ans+=0: 对于第三层对于以该层节点为根的子树的大小为…