言語処理100本ノック 00~09 解答

00

00.py

s = "stressed"
print(s[::-1])

実行結果

desserts

01

01.py

s = "パタトクカシーー"
print(s[::2])

実行結果

パトカー

02

02.py

ret = ''
s1 = 'パトカー'
s2 = 'タクシー'
s = ''.join([a + b for a, b in zip(s1, s2)])
print(s)

実行結果

パタトクカシーー

03

03.py

s = "Now I need a drink, alcoholic of course, after the heavy lectures involving quantum mechanics."
s = s.replace(',','')
s = s.replace('.', '')
l = s.split()
ret = [len(s) for s in l]
print(ret)

実行結果

[3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9]

04

04.py

s = "Hi He Lied Because Boron Could Not Oxidize Fluorine. New Nations Might Also Sign Peace Security Clause. Arthur King Can."
i = 1
n = (0, 4, 5, 6, 7, 8, 14, 15, 18) 
d = {i: word[0:1] if i in n else word[0:2] for i, word in enumerate(s.split())}
print(d)

実行結果

{0: 'H',
 1: 'He',
 2: 'Li',
 3: 'Be',
 4: 'B',
 5: 'C',
 6: 'N',
 7: 'O',
 8: 'F',
 9: 'Ne',
 10: 'Na',
 11: 'Mi',
 12: 'Al',
 13: 'Si',
 14: 'P',
 15: 'S',
 16: 'Cl',
 17: 'Ar',
 18: 'K',
 19: 'Ca'}

05

05.py

def ngram(s, n):
    return [s[i:i+n] for i, _ in enumerate(list(s))]

print(ngram("I am an NLPer", 2))

実行結果

['I ', ' a', 'am', 'm ', ' a', 'an', 'n ', ' N', 'NL', 'LP', 'Pe', 'er', 'r']

06

06.py

def ngram(s, n):
    return {s[i:i+n] for i, _ in enumerate(list(s))}

s1 = "paraparaparadise"
s2 = "paragraph"
X = ngram(s1, 2)
Y = ngram(s2, 2)
print("X | Y :", X | Y)
print("X & Y :", X & Y)
print("X - Y :", X - Y)
print("se" in X)
print("se" in Y)

実行結果

X | Y : {'ra', 'h', 'gr', 'pa', 'ph', 'ap', 'ar', 'ad', 'di', 'is', 'se', 'ag', 'e'}
X & Y : {'pa', 'ap', 'ra', 'ar'}
X - Y : {'ad', 'di', 'se', 'is', 'e'}
True
False

07

07.py

def template(x, y, z):
    return str(x) + "時の" + y + "は" + str(z)

print(template(x=12, y="気温", z=22.4))

実行結果

'12時の気温は22.4'

08

08.py

def cipher(s):
    return ''.join([chr(219-ord(s1)) if s1.islower() else s1 for s1 in s])

s = "Are you sure?"
s_encrypted = cipher(s)
print(s_encrypted)

実行結果

Aiv blf hfiv?

09

09.py

import random

def typoglycemia(s):
    return ' '.join([s1 if len(s1)<=4 else shuffle_string(s1) for s1 in s.split()])

def shuffle_string(s):
    return s[0] + ''.join(random.sample(s[1:-1], len(s[1:-1])))+ s[-1]

s = "I couldn't believe that I could actually understand what I was reading : the phenomenal power of the human mind ."

print(typoglycemia(s))

実行結果

I c'odulnt bievele that I colud aatcluly uasdnnertd what I was rdeaing : the poenhaenml poewr of the hamun mind .