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46 lines (39 loc) · 1.47 KB
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Copy pathSolution.py
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46 lines (39 loc) · 1.47 KB
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from _ast import List
class Solution:
def isValidSudoku(self, board: List[List[str]]) -> bool:
for row in range(9):
isValid = []
for i in range(9):
isValid.append(False)
for column in range(9):
if board[row][column] == '.':
continue
if isValid[int(board[row][column]) - 1]:
return False
else:
isValid[int(board[row][column]) - 1] = True
for column in range(9):
isValid = []
for i in range(9):
isValid.append(False)
for row in range(9):
if board[row][column] == '.':
continue
if isValid[int(board[row][column]) - 1]:
return False
else:
isValid[int(board[row][column]) - 1] = True
for row in range(0, 9, 3):
for column in range(0, 9, 3):
isValid = []
for i in range(9):
isValid.append(False)
for i in range(row, row + 3):
for j in range(column, column + 3):
if board[i][j] == '.':
continue
if isValid[int(board[i][j]) - 1]:
return False
else:
isValid[int(board[i][j]) - 1] = True
return True