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maze.c
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#include <stdio.h>
#include <stdbool.h>
#define N 4
void printf_maze(int s[N][N])
{
for(int i = 0; i < N; i++){
for(int j = 0; j < N; j++){
printf(" %d ", s[i][j]);
}
printf("\n");
}
}
bool isway(int maze[N][N],int x,int y)
{
if (x >= 0 && x < N && y >= 0 && y < N && maze[x][y] == 1)
return(true);
return(false);
}
bool Maze_problem(int maze[N][N], int x, int y, int s[N][N] )
{
if (x == N - 1 && y == N - 1 && maze[x][y] == 1){
s[x][y] = 1;
return (true);
}
if(isway(maze, x, y) == true){
if(s[x][y] == 1)
return (false);
s[x][y] = 1;
if(Maze_problem(maze, x + 1, y, s) == true)
return (true);
if(Maze_problem(maze, x , y + 1, s) == true)
return (true);
if(Maze_problem(maze, x - 1, y, s) == true)
return (true);
if(Maze_problem(maze, x , y - 1, s) == true)
return (true);
s[x][y] = 0;
return (false);
}
return(false);
}
int main()
{
int c[N][N] = { { 1, 0, 0, 0 },
{ 1, 1, 0, 1 },
{ 0, 1, 0, 0 },
{ 1, 1, 1, 1 } };
int b[N][N] = { { 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 } };
if(Maze_problem(c, 0, 0, b) == true){
printf_maze(b);
return(1);
}
printf("FAILED");
return(0);
}