テスト 2024-12-25 Uncategorized 142 words 123fn main() { println!("test");} div(fP(i))=i(P)−(iP)−(i−1)(O)div(f_P^{(i)})=i(P)-(iP)-(i-1)(O)div(fP(i))=i(P)−(iP)−(i−1)(O)