I was solving question and from ZCO past year Question and I am having trouble in verifying whether my solution is correct or not…
Many problems are available on CODECHEF so I submitted there to check whether my code is working or not, but some questions are not on CODECHEF like ZCO 2015 problem COVERING.
And I have written my code and is working on given testcases and some extra testcases which I made but still I am not sure that whether it is working on just few or is correct for every valid input.
So how can I verify correctness of my code ??
Please help…