Fraction to Recurring Decimal | adobe

class Solution:
    def fractionToDecimal(self, numerator: int, denominator: int) -> str:
        if numerator==0:
            return "0"
        sign=1
        if numerator<0:
            sign*=-1
            numerator*=-1
        if denominator<0:
            sign*=-1
            denominator=-denominator    
        
            
        front="" 
        if sign>0:
                front+= str(numerator//denominator)
        else:
                front+="-"+str(numerator//denominator) 
        rem=numerator%denominator
        if rem==0:
            return front
        res=""
        d=defaultdict(int) 
        d[rem]=0
        ind=0
        while rem:
            rem*=10
            res+=str(rem//denominator) 
            ind+=1
            rem%=denominator 
            if rem in d:
                res=res[:d[rem]]+"("+res[d[rem]:]+")"
                break
            
               
            d[rem]=ind    
        return front+"."+res    
link:- https://leetcode.com/problems/fraction-to-recurring-decimal/