进制转换。
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/*
PROGRAM: $PROGRAM
AUTHOR: Su Jiao
DATE: 2010-4-8
DESCRIPTION:
$DESCRIPTION
*/
#include <iostream>
using std::cin;
using std::cout;
#include <fstream>
using std::ifstream;
using std::ofstream;
#include <sstream>
using std::stringstream;
using std::endl;
#include <vector>
using std::vector;
#include <string>
using std::string;
#include <stack>
using std::stack;
#include <queue>
using std::queue;
using std::priority_queue;
#include <set>
using std::set;
#include <map>
using std::map;
using std::pair;
using std::make_pair;
#include <algorithm>
using std::sort;
#include <cassert>
//using std::assert;
class Application
{
int x,y;
int answer;
public:
Application()
{
cin>>x>>y;
}
int run()
{
answer=0;
for (int base=2;base<=x+1;base++)
{
int Y=y;
int X=x;
bool match=true;
while (Y)
{
while (X%base!=Y%base)
{
X/=base;
if (X==0)
{
match=false;
break;
}
}
if (!match) break;
match=true;
X/=base;
Y/=base;
}
if (match)
{
answer=base;
break;
}
}
if (answer) cout<<answer<<endl;
else cout<<“No solution”<<endl;
return 0;
}
};
int main()
{
Application app;
return app.run();
}