#快速幂
2 entries01
AtCoder Beginner Contest 357-D
ProblemFor a positive integer , let be the integer formed by concatenating exactly times. More precisely, consider as a string, concatenate copies of it, and treat the result as an integer to get . For example, and . Find the remainder when is divided by .
02
退役选手的复健笔记
退役选手的复健笔记写在前面突然后天有一场acm校赛要参加。而且还不太清楚题目难度和范围，也不知道选手实力如何。线下比赛，四小时，下午，不利条件有点多。今天（20231222）重拾代码发现是一点不会了。 考前临时抱个佛脚，随便写几道普及题练手，再复习一下摸板吧