N Queen problem----

Question

The N Queen is the problem of placing N chess queens on an N×N chessboard so that no two queens attack each other in row ,column and in each diagonal. For example, click on this link.

https://www.geeksforgeeks.org/backtracking-set-3-n-queen-problem/

In this website solution is given.but i make new solution of this problem.

https://code.sololearn.com/ctJt9Xf1ydDB/?ref=app
plzzz update this code .for working properly.

for any type of help for understand this question.
plzz mention in comment.

Answer 1

i hope problem in the check function section of program.