delete pics to save space

history_source/ccf 入门篇/U4/4.1.7.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int n,a,b,c,a1,b1,c1;
+	while(true)
+	{
+		a=0;
+		b=0;
+		c=0;
+		cin>>n;
+	    for(int i=0;i<n;i++)
+	    {
+		cin>>a1>>b1>>c1;
+		a+=a1;
+		b+=b1;
+		c+=c1;
+	    }
+	    cout<<a<<" "<<b<<" "<<c<<" "<<a+b+c<<endl<<endl;
+	}
+}