About the puzzles for homework 5

Simple puzzles created for this assignment:

• puzzle1.txt, puzzle2.txt, puzzle3.txt, puzzle4.txt, and puzzle5.txt
  

For fun, we include some more difficult puzzles. To solve these puzzles you will need to think carefully about the efficiency of your algorithm (extra credit).

• squared_square.txt
  Problem: Subdivide a square into smaller squares of all different sizes.
  Minimal solution: 21 squares
  Discovered by A.J. Duijvestijn (Netherlands) by computer in 1978.

• bcp_9_piece.txt and bcp_15_piece.txt
  Both puzzles designed by Bill Cutler, 1983.