getting wrong answerin loc june17 kchar problem

I am getting wrong answer for the loc june17 KCHAR problem.
According to me my answer is correct…i checked that for many test cases…and it worked correctly.
Still getting WA…can somebody help?

#include
#include
#include
using namespace std;
int main()
{
long long t,m,b[62]={0},s,j=0;
while(pow(2,j+2)<=pow(10,18))
{
s = pow(2,j+2);
b[j] = s;
j++;
}
cin>>t;
while(t–)
{

    long long flag=0,l,i,k;
    long double n;
    cin>>k;
    if(k==4){
        cout<<"a"<<endl;

        continue;
    }
    else if(k%4==1)
    {
        cout<<"a"<<endl;
        continue;
    }
    else if(k%4==3)
    {
        cout<<"c"<<endl;
        continue;
    }
    else
    {

        if((k+6)%8==0)
        {
            cout<<"a"<<endl;
            continue;
        }
        else
        {
            if(k%4!=0)
            {
                cout<<"c"<<endl;
                continue;
            }
            for(i=0;i<j;i++)
            {
                if(i==j-1 || (k>=b[i] && k<b[i+1]))
                {
                    l = (k-b[i])/4;
                    if(l<i){
                        flag=1;
                    }
                    break;
                }
            }
        }
        if(flag==1)
            cout<<"a"<<endl;
        else
            cout<<"c"<<endl;

    }
}

}

we can’t help you as the question is from ongoing contest.

ok i am not asking about whats wrong with my answer
But please try to run the code once…and just tell me if my output is wrong for any case.
I think this will not violate any rules?

as the verdict is WA obviously your code will give wrong output for some values.

Thats right. I am just asking you if you can point out any test case for which my output is wrong so that i can review my code. I already tried for many cases and my output came just as expected.

it is against the rules of the contest.

bro, take down the question.
It is against the rules to ask for any help regarding an on-going competition.
I’m sure someone will surely help you after the competition.

got correct answer…no help needed

no one will help you even if you want.

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