Can someone please explain this problem to me, the problem statement isn’t very clear and I can’t understand the problem at all.
Problem statement :CodeChef: Practical coding for everyone
Thanks in advance.
Let’s take the given Testcases:
2 1 -> (1, 2) from these numbers you can from all the other numbers ie 1+2=3,2+2=4,5,6…
so answer is 0.
3 3 -> (3,4,5) you can form: 3+3=6,3+4=7,8,9… but not 1 and 2.
so answer is 2 (you can’t form 1 and 2).
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Bro there is no requirement to explain all these ,
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Thanks bro, Understood it now.
Thank you very much.
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He didn’t give me any hint bro, just explained the statement to me.
I don’t think there’s anything wrong in that.
No , I think there is no requirement to explain such in detail, but okay , u understand , now compete your question.
Yeah, I will try my best
I am getting WA in second set of test cases in second sub task of this problem. Someone please point out any possible error I might have made.
Keep patience , editorial comes in a day 
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Don’t worry, your logic is perfect the only thing you have to do is something to prevent overflow at large values of n and k. I too faced this for 2 days and then i got success.
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