usaa21/sk1a/maze.c

#include <stdio.h>
#include <string.h>
#include "maze.h"
#include <assert.h>

int solve_maze(char* maze,int size) {
    int i = 0;
    int p, l, h, d = 0;
    while(i != size*size-1){
        if (maze[i + 1] == ' ' && i != size - 1 && l != 1) {
            maze[i + 1] = '*';
            i++;
            p = 0;
            l = 0;
            h = 0;
            d = 0;
        } else if (maze[i + size] == ' ' && i != size - 1 && h != 1) {
            maze[i + size] = '*';
            i = i + size;
            p = 0;
            l = 0;
            h = 0;
            d = 0;
        } else if (maze[i - 1] == ' ' && i != 0 && p != 1) {
            maze[i - 1] = '*';
            i--;
            p = 0;
            l = 0;
            h = 0;
            d = 0;
        } else if (maze[i - size] == ' ' && i > size && d != 1) {
            maze[i - size] = '*';
            i = i - size;
            p = 0;
            l = 0;
            h = 0;
            d = 0;
        }
        else{
            while(1){

                if (maze[i + 1] == ' ' && i != size - 1 && l != 1) {
                    i++;
                    break;
                }
                if (maze[i + size] == ' ' && i != size - 1 && h != 1) {
                    i = i + size;
                    break;
                }
                if (maze[i - 1] == ' ' && i != 0 && p != 1) {
                    i--;
                    break;
                }
                if (maze[i - size] == ' ' && i > size && d != 1) {
                    i = i - size;
                    break;
                }
                p = 0;
                l = 0;
                h = 0;
                d = 0;
                if (maze[i + 1] == '*' && i != size - 1) {
                    maze[i] = ' ';
                    i++;
                    p = 1;
                } else if (maze[i + size] == '*' && i != size - 1) {
                    maze[i] = ' ';
                    i = i + size;
                    d = 1;
                } else if (maze[i - 1] == '*' && i != 0) {
                    maze[i] = ' ';
                    i--;
                    l = 1;
                } else if (maze[i - size] == '*' && i > size) {
                    maze[i] = ' ';
                    i = i - size;
                    h = 1;
                }
            }
        }
    }
    return 1;
}