Repeating Decimals,ACM/ICPC World Finals 1990,UVa202

#include<iostream>
#include<string>
using namespace std;
int decimal[3000];
int r[3000];

int main(){
int a,b;
int loop=0;

int integer;
cin>>a>>b;

integer=a/b;
r[0]=a-integer*b;
if(r[0]){
for(int i=0;i<3000;i++){
r[i+1]=r[i]*10;
if(r[i+1]>=b){
decimal[i]=r[i+1]/b;
r[i+1]=r[i+1]-decimal[i]*b;
}
else decimal[i]=0;
loop++;
if(!r[i+1]||r[i+1]==r[0])break;

}
}
cout<<integer<<".(";
for(int i=0;i<loop;i++)
cout<<decimal[i];
cout<<")"<<endl;
cout<<"Loop is:"<<loop<<endl;
}