delete pics to save space

history_source/ccf 入门篇/U4/4.2.2.cpp

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+#include<iostream>
+#include<cmath>
+using namespace std;
+int main()
+{
+	int f,i,s,a;
+	while(true)
+	{
+		i=0;
+		s=0;
+		cin>>f;
+		while(true)
+		{
+			a=f;
+			a=a/pow(10,i);
+			if(a==0) break;
+			else
+			{
+			a=a%10;
+			s=s+a;
+			i++;	
+			}
+		}
+		cout<<s<<endl;
+	}
+}