uva 202 Repeating Decimals

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
char change(int k)
{
return k+'0';
}
int main()
{
int a,b;
int m,n;
while(scanf("%d%d",&a,&b)!=EOF)
{
m=a,n=b;
int y[10000];
int x=0;
int cnt=0;
string s;
if(a>b) {y[x++]=a%b;a=a%b;}
else{
while(1)
{
if(cnt)
{
s=s+change(a/b);
y[x++]=a%b;
}
if(a>b) break;
a=a*10;
cnt++;
}
a=a%b;
}
int count=0;
int flag=0;
while(1)
{
s=s+change((a*10)/b);
y[x]=(a*10)%b;
a=(a*10)%b;
for(int i=0;i<x-1;i++)
{
if(y[i]==y[x-1]&&x>1&&s[i]==s[x-2]&&m>n) {flag=i;count++;break;}
if(y[i]==y[x-1]&&s[i]==s[x-1]) {flag=i;count++;break;}
}
if(count) break;
x++;
}
cout<<m<<"/"<<n<<" "<<"="<<" ";
cout<<m/n<<".";
for(int i=0;i<x-1;i++)
{
if(i==50) break;
if(i==flag&&flag==x-2&&(s[i]>='0'&&s[i]<='9')) cout<<"("<<s[i]<<")";
else if(i==flag&&(s[i]>='0'&&s[i]<='9')) cout<<"("<<s[i];
else if(i==x-2&&(s[i]>='0'&&s[i]<='9'))  cout<<s[i]<<")";
else if((s[i]>='0'&&s[i]<='9')) cout<<s[i];
}
if(x>50) cout<<"...)";
cout<<endl;
cout<<"   ";
cout<<x-1-flag;
cout<<" "<<"="<<" number of digits in repeating cycle"<<endl<<endl;;
}
return 0;
}