My code is running fine for custom inputs but when i submit it shows runtime error,I think it is because of the constraints that n can have very high values.Then I unlocked the editorial which is hard to understand for me and the editorial solution is giving answer 0 for any input.Please help.
Not Able to figure out the error
Check the constraints
Constraints
0 <= n <= 1 000 000 000
Generally an array of size 10^9 cannot be made. But here n can range upto 10^9. So idea is to use hashmap for memo table and follow top down approach. Go through this discussion Exchanging coins
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