咳有大佬私信我了我c[i]=(c[i]*b+1)%mod;把%mod去掉就AC了~所以说幂是不能取模的~此贴结 by whileAK @ 2023-07-26 11:58:53
感谢，原来还有这种事情 by Rikka_lyly @ 2023-10-24 16:53:27