C++10進数'純'小数を任意進数の小数に変換
#include <iostream>
using namespace std;
int main()
{
float n;
int p,c,m=0,precision=0,s[100];
cout<<" :"<<endl;
cin>>n;
cout<<" :"<<endl;
cin>>p;
cout<<" precision:"<<endl;
cin>>precision;
cout<<"("<<n<<")10="<<"(0.";
while (n!=0&&m<precision)// , s[m]
{
n=n*p;
c=n; //c n
n=n-c; // n n
m++;s[m]=c; // s[m] s[1]...s[m]
}
for(int k=1;k<=m;k++)//
{
if(s[k]>=10) //
cout<<(char)(s[k]+55);
else //
cout<<s[k];
}
cout<<")"<<p<<endl;
return 0;
}