delete pics to save space

history_source/ccf 入门篇/U3/3.2.3.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+#include<cmath>
+using namespace std; 
+int main()
+{
+	int x,y;
+	while(true)
+	{
+		cin>>x>>y;
+		x=abs(x);
+		y=abs(y);
+		if(x<=1&&y<=1) cout<<"Yes"<<endl;
+		else cout<<"No"<<endl;
+	}
+}