Why I am Getting WA ?

general
,
1

Problem Link–>https://www.codechef.com/problems/APPROX

My Solution–>https://www.codechef.com/viewsolution/11605047
After Trying 3-4 Submisions I Looked at SomeOne Code Its Generating Same Output As Mine Code With Different Logic ,Please Help,Thanks in Advance

My code—>

class Approx

{

public static void main(String[] args)

{

    Scanner sc=new Scanner(System.in);
    int t=sc.nextInt();
    while(t!=0)
    {
   int k=sc.nextInt();
       
       BigDecimal a=new BigDecimal("103993.00");
        BigDecimal d=new BigDecimal("33102.00");
       BigDecimal b=new BigDecimal("0.0");
       
    if(k==0)
            System.out.print("3");
    else
    {
     b=a.divide(d,k+2,RoundingMode.HALF_UP);
       
     String s=b.toString();

    for(int i=0;i<s.length()-2;i++)
    System.out.print(s.charAt(i));

}

System.out.println();

                t--;

}

}

}

I used simple trick and to round off the value to k+2(doesn’t effect answer),and get values till k…

2

Please answer

3

kindly answer this question

4

The problem with your solution is that it actually rounds off the number. All we need is to truncate the number, hence approximate. For details, visit this Editorial. Hope this helps :slight_smile:

5

Why are you making your solution complex using bigdecimal . you can solve it easily using char array .