15 Puzzle\15 puzzle.cpp .........\15 puzzle.dsp .........\15 puzzle.dsw .........\15 puzzle.ncb .........\15 puzzle.opt .........\15 puzzle.plg .........\Debug\15 puzzle.exe .........\.....\15 puzzle.ilk .........\.....\15 puzzle.obj .........\.....\15 puzzle.pch .........\.....\15 puzzle.pdb .........\.....\vc60.idb .........\.....\vc60.pdb .........\Debug 15 Puzzle