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Crypto Cup 2.0 soon
Have you tried a naive algorithm to solve the problem? The values are just 8 directions that you can move from any cell. (row + dy[i], col + dx[i]) for all values of i from 0 to 7. And the solution uses dynamic programming. But I think you should try a recursive one which will look similar to dfs. And then try memoizing it and after that you could make it iterative.