
验证数独的函数中存在问题
class solution(object):
def verify_line(self, board, x, y):
for i in range(9):
if board[i][y] == board[x][y] and i != x:
return false
if board[x][i] == board[x][y] and i != y:
return false
# 错误验证
if x == y or x + y == 8:
for k in range(9):
if board[k][k] == board[x][y] and k != x:
return false
if board[k][8 - k] == board[x][y] and k != x and k - 8 != x:
return false
return true问题出在这个错误的验证中:
if x == y or x + y == 8:
for k in range(9):
if board[k][k] == board[x][y] and k != x:
return false
if board[k][8 - k] == board[x][y] and k != x and k - 8 != x:
return false这段代码尝试验证对角线元素,但它违背了问题要求:
以下是如何更正该函数:
class Solution(object):
def verify_line(self, board, x, y):
for i in range(9):
if board[i][y] == board[x][y] and i != x:
return False
if board[x][i] == board[x][y] and i != y:
return False
return True以上就是数独验证函数中的错误:为什么验证对角线元素是错误的?的详细内容,更多请关注php中文网其它相关文章!
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