delete pics to save space

2023-08-03 09:22:52 +08:00
commit de60cd6ed4
1334 changed files with 66221 additions and 0 deletions
--- a/history_source/信息学奥赛一本通/1.6.2.3.cpp
+++ b/history_source/信息学奥赛一本通/1.6.2.3.cpp
@ -0,0 +1,17 @@
+#include<cstdio>
+using namespace std;
+double h(int n,double x)
+{
+	if(n==0) return 1;
+	if(n==1) return 2*x;
+	return 2*x*h(n-1,x)-2*(n-1)*h(n-2,x);
+} 
+int main()
+{
+	int n;
+	double x;
+	scanf("%d%lf",&n,&x);
+	printf("%g\n",h(n,x));
+	return 0;
+}
+