delete pics to save space

history_source/ccf 入门篇/U4/4.6.5.cpp

@@ -0,0 +1,28 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+bool z(int a)
+{
+	for(int i=2;i*i<=a;i++) if(a%i==0) return 0;
+	return 1;
+}
+int main()
+{
+	int a,b;
+	bool d;
+	while(true)
+	{
+		d=1;
+		cin>>a>>b;
+		for(int i=2;i<=((a<b)?a:b);i++) 
+		{
+			if(z(i)){
+			if(b%i==0)
+			{
+				if(a%i!=0) d=0;
+			}}
+		}
+		if(d) cout<<"Yes"<<endl;
+		else cout<<"No"<<endl;
+	}
+}