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Commit d63344b

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exercises
1 parent 6ff87ab commit d63344b

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def matrix(r,c):
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"""create a list of c amount of 0's for an index in range of 0 to value of rows"""
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"""creates a list of c amount of 0's for an amount of r rows"""
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data=[[0] * c for j in range(r)]
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print(len(data[0])) # gives length of elements in columns
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print(len(data)) # gives length of rows / length of the lists inside the list
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return data
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print(matrix(4,3))
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"""Function for the sum of 2 lists with the same size"""
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def sum(list1, list2):
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total=[[0] * len(list1) for j in range(len(list1[0]))]
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if len(list1) == len(list2) and len(list1[0]) == len(list2[0]):
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for i in range(len(list2)):
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for j in range(len(list2[0])):
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total[i][j]= list1[i][j]+list2[i][j]
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else:
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raise ValueError('The lists do not have the same size')
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return total
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list1=[[1,1], [1,1], [1,1]]
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list2=[[1,1], [1,1]]
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print(sum(list1, list2))
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class TicTacToe:
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def __init__(self):
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self._board= [[' '] *3 for i in range(3)] # creates a list of 3 lists containing 3 empty strings
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self._player='X' # X is what we use to mark our spot in the game
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def mark(self,i,j):
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"""Function that will place the mark in the matrix based on the players position"""
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if not (0<= i <= 2 and 0<=j<=2): #if player puts mark out of matrix bounds, raise error
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raise ValueError('Invalid board position')
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if self._board[i][j] != ' ': # if player puts a mark in a position that is not empty raise error
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raise ValueError('Board Position taken')
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if self.winner() is not None:
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raise ValueError('Game is already complete')
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self._board[i][j]=self._player #we assign to position i j the character X onto the empty value of the board
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if self._player== 'X':
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self._player=='O'
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else:
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self._player=='X'
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def _is_win(self, mark):
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"""Check whether the board config is a win for a given player or a tie"""
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board= self._board # create empty matrix as the board
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return(mark == board[0][0] == board[0][1] == board[0][2] or # row 0
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mark == board[1][0] == board[1][1] == board[1][2] or # row 1
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mark == board[2][0] == board[2][1] == board[2][2] or # row 2
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mark == board[0][0] == board[1][0] == board[2][0] or # column 0
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mark == board[0][1] == board[1][1] == board[2][1] or # column 1
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mark == board[0][2] == board[1][2] == board[2][2] or # column 2
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mark == board[0][0] == board[1][1] == board[2][2] or # diagonal
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mark == board[0][2] == board[1][1] == board[2][0]) #reverse diagonal
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def winner(self):
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for mark in 'XO':
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if self._is_win(mark):
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return mark
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return None
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def __str__(self):
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"""Return string representation of current game board"""
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rows=['|'.join(self._board[r]) for r in range(3)]
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return'\n---------\n'.join(rows)
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game=TicTacToe()
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game.mark(1,1)
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#need for more marks
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print(game)

‎PythonDataStructsAndAlgo/Notes.md

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> 2-D arrays can be also called matrices.
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> *A common representation for a 2-D list in Python is a list of lists*
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>> Example: data=[[22,18,709,5,33], [45,32,830,120,750], [4,880,45,66,61]] which is a matrix of 3 x 4 3 rows, and 4 columns
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>> Example: data=[[22,18,709,5,33], [45,32,830,120,750], [4,880,45,66,61]] which is a matrix of 3 x 4 3 rows, and 4 columns. Meaning data[1][3] is the number

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