{"raw_statement":[{"iden":"statement","content":"已知\n\n$f(x,n)=\\dfrac{x}{n+\\dfrac{x}{(n-1)+\\dfrac{x}{(n-2)+\\dfrac{\\vdots}{\\cdots+\\dfrac{x}{1+x}}}}}$。\n\n用递归函数求解。"},{"iden":"input","content":"第一个数是 $x$ 的值，第二个数是 $n$ 的值。（$x$ 为**实数**，$n$ 为整数）"},{"iden":"output","content":"函数值，保留两位小数。"}],"translated_statement":null,"sample_group":[["1\n2","0.40"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}