Puzzle hrlp

[lastchance]

Put each whole line of the grid in without pressing enter after each element. Look where the line feeds '\n' are in the stringstream.

[Dee5]

I'm so so sorry
The input should have space between
Example
1 0 0 1
1 0 1 0
1 1 1 0
0 0 1 0

Is there any way to solve the space problem

[lastchance]

@Dee,
If you insist on using spaces between elements then you can use a 2-d int array or vector of vectors instead of the char array implied by using strings. That is the only change.

It would take very little for you to transform grid[] in the code above to such an array. So I think you could do that yourself.

BTW. Make sure that your latest 4x4 example is feasible. It has no route between top left and bottom right.

[Dee5]

Where exactly should I do the changes

[Dee5]

Also please add comments in the code so as I can understand it better
I learn through other codes and through books I don't study c++ in school

[againtry]

C'mon @lastchance Get with the program and hurry up. Dee5's got a deadline to meet.

[lastchance]

@Dee5, if you change

   vector<string> grid(N);
   for ( int i = 0; i < N; i++ ) in >> grid[i];

to

   vector<string> grid(N,string(N,' '));
   for ( int i = 0; i < N; i++ )
      for ( int j = 0; j < N; j++ ) in >> grid[i][j];

then it will work regardless of whether the input has spaces or not.

This is my last contribution to this thread.