摘要:
大体思路见过,但是已经模糊了,复习一下要求sigma(gcd(n,i)),1#include#include#include#include#include#include#include#include... 阅读全文
摘要:
给n,问123……n这个数字串模m的数值,n#include#include#include#include#include#include#include#include#include#include... 阅读全文