Horribly explained challenge. I had to paste the text in chatgpt to get it explained properly. Wording is poor, 'cost' should actually have been earnings or profit. Paths could be Deliveries or Offers.

Further, the method definition (in Java 8) doesn't match expected results. Test 4 specifically has a result for a test: 17079508449, which is too large for an int. However, the method is defined as returning an int.

I have no clue how 90+% finished this challenge (it's actually the hard challenge with highest success rate), but I'd have to assume many copy-pasted the solution from elsewhere.

Here is my solution in java, C, C++ HackerRank Vertical Paths Problem Solution

Here is the solution of Vertical Paths Click Here

Here is problem solution - https://programs.programmingoneonone.com/2021/07/hackerrank-vertical-paths-problem-solution.html

1 8 8 1 2 3 1 3 1 2 4 5 2 5 1 2 6 1 3 7 2 4 8 1 1 2 3 2 8 5 1 8 7 1 5 8 1 6 10 3 7 5 1 7 6 1 7 6

this input is not alligned with the question