Sudoku Solver

A Sudoku solver implemented in C++ is a program that can take a partially filled 9x9 Sudoku grid as input, and then uses an algorithm to fill in the missing numbers such that each row, column, and 3x3 subgrid contains all numbers from 1 to 9 without any duplicates. The solver typically employs a backtracking algorithm, which involves trying out different possible values for each cell until a valid solution is found.