不可摸数 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7966 Accepted Submission(s): 2024 Problem Description s(n)是正整数n的真因子之和,即小于n且整除n的因子和.例如s(12)=1+2+3+4+6=16.如果任何数m,s(m)都不等于n,则称n为不可摸数. Input…
题目链接:http://acm.swust.edu.cn/problem/797/ Time limit(ms): 1000 Memory limit(kb): 10000 Description Palindromes are numbers that read the same forwards as backwards. The number 12321 is a typical palindrome. Given a number base B (2 <= B <= 20 base…