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36_valid_sudoku.py
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36_valid_sudoku.py
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class Solution:
def isValidSudoku(self, board: List[List[str]]) -> bool:
ans = True
for i in range(9):
tmp = set()
for j in range(9):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
for i in range(9):
tmp = set()
for j in range(9):
if board[j][i] in tmp:
ans = False
break
elif board[j][i].isdigit() == True:
tmp.add(board[j][i])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3):
for j in range(3):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3):
for j in range(3, 6):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3):
for j in range(6, 9):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3, 6):
for j in range(3):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3, 6):
for j in range(3, 6):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(3, 6):
for j in range(6, 9):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(6, 9):
for j in range(3):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(6, 9):
for j in range(3, 6):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
tmp = set()
for i in range(6, 9):
for j in range(6, 9):
if board[i][j] in tmp:
ans = False
break
elif board[i][j].isdigit() == True:
tmp.add(board[i][j])
else:
pass
if ans == False:
return ans
return ans
'''
This is my personal record of solving Leetcode Problems.
If you have any questions, please discuss them in [Issues](https://github.com/mengxinayan/leetcode/issues).
Copyright (C) 2020-2022 mengxinayan
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''