def check(i,j): t=[0]*5 for x in range(4): t[d[i][x]]=1 #检查同一行 t[d[x][j]]=1 #检查同一列 #检查对角线 if i<=1 and j<=1: t[d[1-i][1-j]]=1 elif i<=1 and j>=2: t[d[1-i][5-j]]=1 elif i>=2 and j<=1: t[d[5-i][1-j]]=1 elif i>=2 and j>=2: t[d[5-i][5-j]]=1 k=0 for a in range(1,5): if t[a]==0: __________ else: k+=1 if __________: return n else: return 0 d=[[0 for j in range(4) ] for i in range(4) ] for i in range(4): d[i]=list(map(int,input().split(","))) flag=False while __________: flag=True for i in range(4): for j in range(4): if d[i][j]==0: d[i][j]=check(i,j) if __________: flag=False for i in range(4): for j in range(4): print(d[i][j],end=" ") print(" ")

缺失的代码应该是:

if k == 4:
    return n
else:
    return 0

while flag:
    flag = False
    for i in range(4):
        for j in range(4):
            if d[i][j] == 0:
                d[i][j] = check(i, j)
                if d[i][j] != 0:
                    flag = True

完整的代码如下:

def check(i, j):
    t = [0] * 5
    for x in range(4):
        t[d[i][x]] = 1     #检查同一行
        t[d[x][j]] = 1     #检查同一列
    
    #检查对角线
    if i <= 1 and j <= 1:
        t[d[1 - i][1 - j]] = 1
    elif i <= 1 and j >= 2:
        t[d[1 - i][5 - j]] = 1
    elif i >= 2 and j <= 1:
        t[d[5 - i][1 - j]] = 1
    elif i >= 2 and j >= 2:
        t[d[5 - i][5 - j]] = 1
    
    k = 0
    for a in range(1, 5):
        if t[a] == 0:
            k += 1
    if k == 4:
        return n
    else:
        return 0
    
d = [[0 for j in range(4)] for i in range(4)]
for i in range(4):
    d[i] = list(map(int, input().split(",")))

flag = False
while flag:
    flag = False
    for i in range(4):
        for j in range(4):
            if d[i][j] == 0:
                d[i][j] = check(i, j)
                if d[i][j] != 0:
                    flag = True

for i in range(4):
    for j in range(4):
        print(d[i][j], end=" ")
    print(" ")