delete pics to save space

history_source/ccf 入门篇/U4/4.1.5.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	unsigned long long s;
+	s=1;
+	for(int i=1;i<64;i++)
+	{
+		s=s+s*2;
+	}
+	long double t;
+	t=s/142000000;
+	cout<<t;
+	while(true);
+}