Update.
-rw-r--r-- 905 README.txt
-rwxr-xr-x 905 do_all.sh
-rwxr-xr-x 3186 expr.py
-rwxr-xr-x 2639 ffutils.py
-rwxr-xr-x 5171 graph.py
-rwxr-xr-x 12816 greed.py
-rwxr-xr-x 11591 grid.py
-rwxr-xr-x 25672 main.py
-rwxr-xr-x 9755 maze.py
-rwxr-xr-x 10732 mygpt.py
-rwxr-xr-x 11522 picoclvr.py
-rwxr-xr-x 15869 problems.py
-rwxr-xr-x 12089 qmlp.py
-rwxr-xr-x 5015 rpl.py
-rwxr-xr-x 4189 snake.py
-rwxr-xr-x 3617 stack.py
-rwxr-xr-x 75358 tasks.py
-rwxr-xr-x 1512 turing.py
-rwxr-xr-x 13308 world.py