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Grokking the Coding Interview Patterns

N-Queens II

Explore the backtracking approach to the N-Queens II problem, where you count the number of ways to place n queens on an n x n chessboard without attacks. Understand problem constraints and implement solutions that handle rows, columns, and diagonals efficiently using coding interview patterns.

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Statement

Given an integer, n, representing the size of an n x n chessboard, return the number of distinct ways to place n queens so that no two queens attack each other. A queen can attack another queen if they are in the same row, column, or diagonal.

Constraints:

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