By script, I mean what method do you use to stress test your solution(code maybe?)
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By script, I mean what method do you use to stress test your solution(code maybe?)
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i verify it on paper firstly even then if i get WA i try to think of corner cases most of the times it works
I do this only when the following is true (quite frankly, this happens often):
problem is about an array without special properties (that is, random array will be a valid input)
I came up with greedy algorithm or dp without a solid proof, and it gives WA
I can write a checker, i.e. check that my answer is correct -- for example if I have to output a number of transformations that will lead to something that is easy to check
Then I just replace each "read" statement with something like
rand() % max_value_for_this_variable
, and run all this in a loop of 1000 and see if there is a mistake somewhere.Sometimes I also do this if I know I have an integer overflow or out-of-bounds access, but cannot find where.