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solver.py
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solver.py
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from sudoku import *
s = Sudoku()
total = 45
#s.show()
def mark(x, y, n, sudoku=s.grid):
v = isValidRow(x, y, n, sudoku) and isValidColumn(x, y, n, sudoku) and isValid3x3(x, y, n, sudoku)
if not v:
return
if len(sudoku[y][x]) == 1:
print("Number already chosen")
return
if n in sudoku[y][x]:
sudoku[y][x] = [n]
else:
print("Invalid number/Position. No number there")
#Remove the number from column
for i in range(9):
if len(sudoku[i][x]) != 1 and n in sudoku[i][x]:
sudoku[i][x].remove(n)
#Remove the number from row
for i in range(9):
if len(sudoku[y][i]) != 1 and n in sudoku[y][i]:
sudoku[y][i].remove(n)
#Remove the number in the 3x3 grid according to sudoku rules.
startx = x // 3 * 3
starty = y // 3 * 3
for i in range(startx, startx + 3):
for j in range(starty, starty + 3):
if n in sudoku[j][i] and sum(sudoku[j][i]) - n == 45 - n:
sudoku[j][i].remove(n)
print(s.show())
#Check if you can put in the column
def isValidColumn(x, y, n, sudoku):
if n == 0:
v = 0
for i in sudoku[y]:
v += sum(i)
if v == 45:
return True
return False
for i in sudoku[y]:
if i == [n]:
print(n, "not valid in row", x, "column ", y)
return False
return True
#Check if you can put in the row
def isValidRow(x, y, n, sudoku):
if n == 0:
for i in range(9):
if sum(sudoku[x][i]) == 45:
return True
return False
for i in range(9):
if [n] == sudoku[x][i]:
print(n, "not valid in row ", x, "column", y)
return False
return True
#Check if you can put in the 3x3 grid.
def isValid3x3(x, y, n, sudoku):
if n == 0:
t0 = []
sx = x // 3 * 3
sy = y // 3 * 3
for i in range(sx, sx + 3):
for j in range(sy, sy + 3):
t0.append(sudoku[i][j])
if sum(t0) == 45:
return True
return False
t = []
sx = x // 3 * 3
sy = y // 3 * 3
for i in range(sx, sx + 3):
for j in range(sy, sy + 3):
t.append(sudoku[i][j])
if [n] in t:
print(n, "not valid in 3x3 in range y:", sy, "-", sy + 3, "and x:", sx, "-", sx + 3)
return False
return True
def checkAll(sudoku=s.grid):
for i in range(9):
if not isValidRow(0, i, 0, sudoku):
return False
if not isValidColumn(i, 0, 0, sudoku):
return False
for i in range(0, 9, 3):
for j in range(0, 9, 3):
if not isValid3x3(i, j, 0, sudoku):
return False
return True
"""
mark(0, 0, 1)
mark(0, 0, 1)
mark(1, 0, 1)
mark(0, 1, 1)
mark(1, 1, 1)
mark(1, 3, 1)
#mark(0, 1, 3)
#mark(2, 0, 3)
#mark(2, 0, 3)
checkAll()
#mark(1, 1, 2)
#print(s.grid)
print()
print(s.show())
"""
while(True):
l = list(input("r c v").split())
print(type(l[2]))
if l[2] == "0":
print(checkAll())
else:
mark(int(l[0]), int(l[1]), int(l[2]))