delete pics to save space

history_source/ccf 基础篇/U7/7.6.1.cpp

@@ -0,0 +1,29 @@
+#include<iostream>
+#include<string>
+using namespace std;
+string p,q,r;
+long long ten(string sr,int j)
+{
+	long long add=0;
+	for(int i=0;i<sr.size();i++)
+	{
+		add*=j;
+		add+=sr[i]-'0';
+	}
+	return add;
+}
+int main()
+{
+	int b;
+	while(true)
+	{
+		cin>>p>>q>>r;
+		for(b=2;b<=16;b++)
+		{
+			if(ten(p,b)*ten(q,b)==ten(r,b)) break;
+		}
+		if(ten(p,b)*ten(q,b)==ten(r,b)) cout<<b<<endl;
+		else cout<<0<<endl;
+	}
+} 
+