ND code python như sau:

with open ('bai1.inp', 'r') as file:

    hang,cot=map(int, file.readline().split())

    a=[]

    for i in range (hang):

        x=list(map(int,file.readline().split()))

        a.append(x)

with open ('bai1.out', 'w') as file:

    file.write(str(a))

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Lỗi hiện lên: ValueError: not enough values to unpack (expected 2, got 1)