195 lines
7.3 KiB
Python
195 lines
7.3 KiB
Python
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# 0h h1 Solver. Solves grids of 0h h1 game.
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# Copyright (C) 2015 Gabriel Augendre <gabriel@augendre.info>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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__author__ = 'gaugendre'
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import sys
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class Grid:
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def __init__(self, size, array=None):
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_squares = []
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square_list = []
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i = 0
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while i < size:
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_squares.append([])
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j = 0
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while j < size:
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if array:
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_squares[i].append(Square(self, i, j, array[i][j]))
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else:
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_squares[i].append(Square(self, i, j))
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j += 1
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square_list.extend(_squares[i])
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i += 1
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self._squares = _squares
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self.size = size
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self.square_list = square_list
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def _get_squares(self):
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return self._squares
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squares = property(fget=_get_squares)
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def square(self, horiz, vert):
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return self._squares[vert][horiz]
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def __repr__(self):
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representation = ""
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for line in self._squares:
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for square in line:
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to_print = square.state
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if to_print == ' ':
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to_print = '_'
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representation += to_print + ' '
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representation += "\n"
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return representation
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def solve(self):
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for k in range(0, 10, 1):
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for square in self.square_list:
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if square.is_empty():
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v_prev = square.prev_vert()
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v_next = square.next_vert()
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h_prev = square.prev_horiz()
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h_next = square.next_horiz()
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# print("Taking care of {}".format(square))
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if not square.switched and v_prev and v_prev.state != ' ':
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# print("On vérifie le précédent vertical.")
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v_p_prev = v_prev.prev_vert()
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if v_p_prev and v_p_prev.state == v_prev.state:
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square.state = v_prev.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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elif v_next and v_next.state == v_prev.state:
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square.state = v_prev.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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if not square.switched and v_next and v_next.state != ' ':
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# print("On vérifie le suivant vertical.")
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v_n_next = v_next.next_vert()
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if v_n_next and v_n_next.state == v_next.state:
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square.state = v_next.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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if not square.switched and h_prev and h_prev.state != ' ':
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# print("On vérifie le précédent horizontal.")
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h_p_prev = h_prev.prev_horiz()
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if h_p_prev and h_p_prev.state == h_prev.state:
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square.state = h_prev.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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elif h_next and h_next.state == h_prev.state:
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square.state = h_prev.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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if not square.switched and h_next and h_next.state != ' ':
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# print("On vérifie le suivant horizontal.")
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h_n_next = h_next.next_horiz()
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if h_n_next and h_n_next.state == h_next.state:
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square.state = h_next.opposite_state()
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# print("Square {} switched to {}".format(square,
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# square.state))
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class Square:
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"""
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Represents a square in the grid.
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A square can be either Red, Blue, or Nothing, depending on the text
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written in it and displayed ('R', 'B' or ' ').
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"""
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def __init__(self, grid, vert, horiz, state=' '):
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self.horiz = horiz
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self.vert = vert
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self.switched = False
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if isinstance(grid, Grid):
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self.grid = grid
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else:
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print("Warning : Attribute grid not instance of Grid",
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file=sys.stderr)
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self.grid = None
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if state in (' ', 'R', 'B'):
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self._state = state
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else:
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print("Warning : Attribute state not in ('R', 'B', ' ')",
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file=sys.stderr)
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self._state = ' '
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def next_horiz(self):
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if self.horiz == self.grid.size - 1:
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return None
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return self.grid.square(self.horiz + 1, self.vert)
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def prev_horiz(self):
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if self.horiz == 0:
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return None
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return self.grid.square(self.horiz - 1, self.vert)
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def next_vert(self):
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if self.vert == self.grid.size - 1:
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return None
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return self.grid.square(self.horiz, self.vert + 1)
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def prev_vert(self):
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if self.vert == 0:
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return None
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return self.grid.square(self.horiz, self.vert - 1)
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def __eq__(self, other):
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if other is None or not isinstance(other, Square):
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return False
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else:
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return self.__hash__() == other.__hash__()
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def __hash__(self):
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return hash((self.horiz, self.vert, self.grid))
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def __repr__(self):
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return "({}, {}) : '{}'".format(self.horiz, self.vert, self.state)
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def _get_state(self):
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"""
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Allow to get square state.
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:return: The square state. Either ' ', 'R' or 'B'
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"""
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return self._state
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def _set_state(self, new_state):
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"""
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Changes square state. Accepts only 'R', 'B', or ' '.
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Other values are not accepted and the square is not modified.
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"""
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if new_state in ('R', 'B', ' '):
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self._state = new_state
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self.switched = True
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else:
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print("Error :", new_state, "not in ('R', 'B', ' ').")
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state = property(_get_state, _set_state)
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def opposite_state(self):
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if self.state == 'R':
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return 'B'
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elif self.state == 'B':
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return 'R'
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else:
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return ' '
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def is_empty(self):
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return self.state == ' '
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