delete pics to save space

history_source/ccf 入门篇/U4/4.3.3.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+int main()
+{
+	double l=200,s=0;
+	do
+	{
+		s=s+l;
+		l/=2;
+	} while(l>=0.5);
+	cout<<s;
+	while(true);
+}