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「世界で闘うプログラミング力を鍛える本」Pythonコード解答例 - 1.9 文字列の回転

Last updated at 2020-02-03Posted at 2020-02-01

#目次
###CHAP1. 配列と文字列

#Pythonコード解答例

def isSubstring(s1,s2):

    return s2 in s1

def isRotation(s1,s2):

    length = len(s1)

    if length==len(s2) and length>0:
        s1s1 = s1 + s1  
        return isSubstring(s1s1,s2)

    return False

input_str_1 = "waterbottle"
input_str_2 = "bottlewater"

print(isRotation(input_str_1,input_str_2))

input_str_3 = "waterbottle"
input_str_4 = "water"

print(isRotation(input_str_3,input_str_4))

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