Puzzle game

puzzle

/*
What is this game all about ?

There is an ideal 2D array consisting of alphabets from a to x, and the last element of the array being '-'. But the user is given some permutation of the array with '-' somewhere in between. The goal of the user is to reach that ideal 2D array.
 */

#include<stdio.h>

static char ideal[5][5] = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
		'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
		'_' };
static char random[5][5] = { 'l', 'm', '_', 'd', 'q', 'c', 'o', 'e', 'a', 'f',
		'g', 'b', 'i', 'p', 'h', 'r', 's', 'w', 'x', 'k', 'j', 't', 'u', 'v',
		'n' };

int m = 0; //this is the row position of '_' ;
int n = 2; // this is the column position of '_';

static void print() {
	int i, j;
	for (i = 0; i < 5; i++) {
		for (j = 0; j < 5; j++) {
			printf("%c ", random[i][j]);
		}
		printf("\n");
	}
	printf("\n");
}

static int check() {

	int k = 0;
	int i, j;
	for (i = 0; i < 5; i++) {
		for (j = 0; j < 5; j++) {
			if (ideal[i][j] == random[i][j]) {
				if (i == 4 && j == 4)
					return 1;
			} else
				return 0;

		}

	}
	return 0;

}

static void swap(char* a, char* b) {

	char t;
	t = *a;
	*a = *b;
	*b = t;
	print();
}

int main() {
	int counter = 0;
	printf("Use 'i','j','k','l' for up, left, down, right respectively.\n");
	char ch;
	print();
	while (!check()) {

		ch = getchar();
		if (ch == '\n')
			continue;
		switch (ch) {
		case 'i':
			if (m == 4) {
				printf("Action not possible. Please enter a valid option.\n");
				print();
				break;
			}
			swap(&random[m][n], &random[m + 1][n]);
			m++;
			counter++;
			break;
		case 'j':
			if (n == 4) {
				printf("Action not possible. Please enter a valid option.\n");
				print();
				break;
			}
			swap(&random[m][n], &random[m][n + 1]);
			n++;
			counter++;
			break;
		case 'k':
			if (m == 0) {
				printf("Action not possible. Please enter a valid option.\n");
				print();
				break;
			}
			swap(&random[m][n], &random[m - 1][n]);
			m--;
			counter++;

			break;

		case 'l':
			if (n == 0) {
				printf("Action not possible. Please enter a valid option.\n");
				print();
				break;
			}

			swap(&random[m][n], &random[m][n - 1]);
			n--;
			counter++;
			break;
		default:
			printf(
					"Please enter a valid character. Valid options are\ni j k and l.\n");

		}

	}

	printf("\n****Congratulations****, you win the Game !!!\n\n"
			"************Your score : %d************", counter);
	return 0;
}