Hi all,

以下

str1 = input()

a, b, c = str1.split(' ')

a = int(a)

b = int(b)

c = int(c)

root = b*b-4*a*c

if root < 0:

    print('No real root')

elif root >= 0:

    root1 = -b/2*a +(b*b-4*a*c)**0.5/2*a

    root2 = -b/2*a - (b*b-4*a*c)**0.5/2*a

    root1 = int(root1)

    root2 = int(root2)

    if root > 0:

        print('Two different roots x1=',root1,' , x2=',root2, sep="")

    elif root == 0:

        print('Two same roots x=',root1, sep="")

謝謝

PS: 答案均為整數，若有兩個根則大者在前