In [7]:

    

result = []
for i in range(1, 10):
    word = ""
    if i % 3 == 0:
        word += "fast"
    if i % 5 == 0:
        word += "campus"
    
    result.append(word)


    

In [8]:

    

result


    

    
Out[8]:





['', '', 'fast', '', 'campus', 'fast', '', '', 'fast']

In [ ]:

    

# List Comprehension


    

In [21]:

    

fast_list = ["fast" if x %3 ==0 else "" for x in range(1, 10)]
print fast_list

campus_list = ["cmpus" if x % 5 == 0 else "" for x in range(1, 10)]
print campus_list


    

    




['', '', 'fast', '', '', 'fast', '', '', 'fast']
['', '', '', '', 'cmpus', '', '', '', '']

In [26]:

    

[ fast_list[i] + campus_list[i] for i in range(9)]


    

    
Out[26]:





['', '', 'fast', '', 'cmpus', 'fast', '', '', 'fast']

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# palindrome
# is_palindrome("기러기") -> True
# is_palindrome("패켐") -> False


    

In [38]:

    

def reverse(word):
    reversed_word = ""
    for i in range(len(word)):
        reversed_word += word [len(word)-1-i]
    return reversed_word
    return word


    

In [39]:

    

def is_palindrome(word):
    return word == reverse(word)


    

In [41]:

    

is_palindrome("kayak")


    

    
Out[41]:





True

In [43]:

    

"abcde"[::-1]


    

    
Out[43]:





'edcba'

In [44]:

    

def reverse(word):
    return word [::-1]
def is_palindrome(word):
    return word == reverse(word)


    

In [47]:

    

(lambda x: x == x[::-1])("kayak")


    

    
Out[47]:





True

In [58]:

    

# sentence split
def word_split(sentence):
    word_list = []
    word = ""
    
    for char in sentence:
        if char == "":
            word_list.append(word)
            word = ""
        else:
            word += char
    word_list.append(word)
    return word_list


    

In [57]:

    

word_split("i don't like apple")


    

    
Out[57]:





["i don't like apple"]

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