Is this possible to draw the recurrence tree

#1

for sudo-solver problem

#2

@Vikaspal yes you can draw but that will be very large so think in a way that recursion will do it work you have to just focus on your calculation and some backtracking stuff.

#3

can you explain the ways for the subgrid calculation formula 10:19 at the starting

#4

@Vikaspal hey I dont understand your doubt can you eloborate which function you are talking about and what does it do in your question.

#5

@rishabhmahajan546 when the prateek bhaiya is expallining the subgrid formula. 9 length ke grid me 3 subgrid hai …

#6

@Vikaspal hey that logic is like in each subgrid of 3*3 there should be no repitition so in that we are checking evry subgrid of size 3 and checking for repitition.

#7

checking for repetition means? can u please explain without input so i understand it better to solve other problems and build the logic

#8

@Vikaspal hey you are given a partially filled 9×9 2D array ‘grid[9][9]’, the goal is to assign digits (from 1 to 9) to the empty cells so that every row, column, and subgrid of size 3×3 contains exactly one instance of the digits from 1 to 9. So no is not repeated in 3*3 subgrid for that we are using that logic.

#9

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