스도쿠 풀이문

answer.c

int main()
{
	int array[4][4] = {
		{4,3,0,0},
		{1,2,3,0},
		{0,0,2,0},
		{2,1,0,0}
	};
	int i, j, k;
	for ( i = 0; i < 4; i++) {
		for ( j = 0; j < 4; j++) {
			if (array[i][j] == 0) {
				int canAnswers[4] = { 1, 2, 3, 4 };
				for ( k = 0; k < 4; k++) {
					if (array[k][j] != 0) {
						canAnswers[array[k][j] - 1] = 0;
					}
					if (array[i][k] != 0) {
						canAnswers[array[i][k] - 1] = 0;
					}
				}
				int answer = -1;
				for ( k = 0; k < 4; k++) {
					if (canAnswers[k] != 0) {
						answer = canAnswers[k];
						break;
					}
				}
				array[i][j] = answer;
			}
		}
	}
	return 0;
}