delete pics to save space

history_source/信息学奥赛一本通/1.4.1.1.cpp

@@ -0,0 +1,16 @@
+#include<cstdio>
+using namespace std;
+int main()
+{
+	int n;
+	scanf("%d",&n);
+	double add,x;
+	for(int i=0;i<n;i++)
+	{
+		scanf("%lf",&x);
+		add+=x;
+	}
+	add=add/n;
+	printf("%lf",add);
+	return 0;
+}