===============Zad 1==================

main (){
    fork ();
    fork ();
    if (!fork ())
        fork ();
    fork ();
}

^
|
|
*----------------------------------
|                                 |
|                                 |
*----------------                 *----------------
|               |                 |               |
|               |                 |               |
|               |                 |               |
*------         *------           *------         *------
|     |         |     |           |     |         |     |
|     |         |     |           |     |         |     |
|     |         |     |           |     |         |     |
|     *-----    |     *-----      |     *-----    |     *-----
|     |    |    |     |    |      |     |    |    |     |    |
|     |    |    |     |    |      |     |    |    |     |    |
*--   *--  *--  *--   *--  *--    *--   *--  *--  *--   *--  *--
| |   | |  | |  | |   | |  | |    | |   | |  | |  | |   | |  | |
| |   | |  | |  | |   | |  | |    | |   | |  | |  | |   | |  | |



===============Zad 2==================
main (){
    fork ();
    fork ();
        if ( fork () )
         exit ();
    fork ();
}

^
|
|
*--------------------------------------------------
|                                                 |
|                                                 |
*------------------------                         *-----------------------
|                       |                         |                       |
|                       |                         |                       |
|                       |                         |                       |
*--------------         *--------------           *--------------         *--------------
|             |         |             |           |             |         |             |
|             |         |             |           |             |         |             |
|             |         |             |           |             |         |             |
X             |         X             |           X             |         X             |
              |                       |                         |                       |
              |                       |                         |                       |
              *-----                  *-----                    *-----                  *-----
              |    |                  |    |                    |    |                  |    |
              |    |                  |    |                    |    |                  |    |
              |    |                  |    |                    |    |                  |    |



===============Zad 3==================

main (){
    fork ();
    fork ();
        if ( fork () )
        if ( !fork () )
         fork();
        else
         exit();
        fork ();
}


^
|
|
*--------------------------------------------------
|                                                 |
|                                                 |
*------------------------                         *-----------------------
|                       |                         |                       |
|                       |                         |                       |
|                       |                         |                       |
*--------------         *--------------           *--------------         *--------------
|             |         |             |           |             |         |             |
|             |         |             |           |             |         |             |
|             |         |             |           |             |         |             |
*----         |         *----         |           *----         |         *----         |
|   |         |         |   |         |           |   |         |         |   |         |
|   |         |         |   |         |           |   |         |         |   |         |
|   *-----    |         |   *-----    |           |   *-----    |         |   *-----    |
|   |    |    |         |   |    |    |           |   |    |    |         |   |    |    |
|   |    |    |         |   |    |    |           |   |    |    |         |   |    |    |
X   |    |    |         X   |    |    |           X   |    |    |         X   |    |    |
    |    |    |             |    |    |               |    |    |             |    |    |
    *--  *--  *--           *--  *--  *--             *--  *--  *--           *--  *--  *--
    | |  | |  | |           | |  | |  | |             | |  | |  | |           | |  | |  | |
    | |  | |  | |           | |  | |  | |             | |  | |  | |           | |  | |  | |
    | |  | |  | |           | |  | |  | |             | |  | |  | |           | |  | |  | |