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bopbi / sudoku.c
Last active February 16, 2022 05:51
C Source code for solving sudoku using recursion, based on http://www.geeksforgeeks.org/backtracking-set-7-suduku/
#include <stdio.h>
#define N 9
#define UNASSIGNED 0
int is_exist_row(int grid[N][N], int row, int num){
for (int col = 0; col < 9; col++) {
if (grid[row][col] == num) {
return 1;
}