42 lines
1000 B
C
42 lines
1000 B
C
#include <stdio.h>
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#include <string.h>
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#include "maze.h"
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#include <assert.h>
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int issafe(char* maze, int x, int y, int size) {
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if ((x >= 0 && x < size) && (y >= 0 && y < size) && (maze[x * size + y] == ' ')){
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return 1;
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}
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return 0;
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}
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int backtracking(char* maze, int x, int y, int size){
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if(x == size - 1 && y == size - 1 && maze[x * size + y] == ' '){
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maze[x * size + y] = '*';
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return 1;
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}
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if(issafe(maze, x, y, size) == 1) {
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maze[x * size + y] = '*';
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if (backtracking(maze, x, y + 1, size) == 1) {
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return 1;
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}
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if (backtracking(maze, x + 1, y, size) == 1) {
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return 1;
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}
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if (backtracking(maze, x - 1, y, size) == 1) {
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return 1;
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}
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if (backtracking(maze, x, y - 1, size) == 1) {
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return 1;
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}
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maze[x * size + y] = ' ';
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}
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return 0;
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}
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int solve_maze(char* maze, int size) {
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return backtracking(maze, 0, 0, size);
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}
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