I had this solution CodeChef: Practical coding for everyone which resulted in WA but then I just changed my vector to array CodeChef: Practical coding for everyone and it worked what’s the reason behind this!!
Please explain.
Try printing the n’th item in an array of n size or vector of n size , it gives random output, that random may have matched with b variable of yours giving output -1 instead of n
Congo, your vector solution got accepted
https://www.codechef.com/viewsolution/35692458
Just edited this portion
if(l1!=n && v[l1]==b)
{
cout<<-1<<endl;
}
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