CF. 1043F. Make It One(DP 容斥)
给定$n$个数$A_i$，求最少选出多少个数，使得它们的$\gcd$为$1$。
$n,A_i\leq3\times10^5$。
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很久以前的奇怪但现在依旧成立的签名
attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
很久以前的奇怪但现在依旧成立的签名
attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
