给定数独板，检测数独是否正确 快手笔试题4

数独正确性检测.py

"""
给定数独板，检测数独是否正确
快手笔试题4
"""
class E(Exception):
    pass

def valid(l):
    d={}
    for v in l:
        if v!=0:
            if v in d:
                raise E
            d[v]=1
    return True

def inm():
    m=[]
    for i in range(9):
        m.append([])
        for c in input():
            if c in "123456789":
                m[-1].append(int(c))
            elif c=="X":
                m[-1].append(0)
            else:
                # print("false")
                raise E
    for l in m:
        if not valid(l):
            print("false")
            raise E
    for i in range(9):
        if not valid([m[j][i] for j in range(9)]):
            # print("false")
            raise E
    for i in range(3):
        for j in range(3):
            l=[]
            for k in range(3):
                for o in range(3):
                    l.append(m[3*i+k][3*j+o])
            if not valid(l):
                # print("false")
                raise E
try:
    inm()
except E:
    print("false")
else:
    print("true")