「自作Python100本ノック」4日目（16本〜20本目） ref: https://qiita.com/ahpjop/items/c036a9dbc2f8b4a23c62

q16.py

from math import sin,pi
print(sin(pi/4)) #piは180°を表す

q17.py

import binascii
#文字列 -> 16進数
binascii.hexlify(b'Hello') 

#16進数 -> 文字列
binascii.unhexlify('48656c6c6f')

q18.py

#英字（小文字＆大文字）：string.ascii_letters
#数字：string.digits
#記号：string.punctuation

import string
import random

a = ''.join([random.choice(string.ascii_letters + string.digits) for i in range(8)]) #リストの中の文字を連結出来る
print(a)

q19.py

def randlist(size,lower,upper):
    list = []
    for i in range(size):
        list.append(random.randint(lower,upper))
    print(list)

randlist(10,30,90)

q20.py

def check_hand(a,b,c,d,e):
    list_hands = [a,b,c,d,e]
    dict_hands = {0 : "NO PAIR", 1 : "ONE PAIR", 2 : "TWO PAIR", 3 : "THREE CARD", 4 : "FOUR CARD", 5 : "FULL HOUSE"}
    results = []

    for i in list_hands:#カードXを選ぶ
        count_i = list_hands.count(i)#手札の中にあるカードXの個数をカウント

        left_hands = [n for n in list_hands  if n  != i] #Xの数字を除いた残りの手札
        for j in left_hands:#X以外の数字のカードからカードYを選ぶ
            count_j = list_hands.count(j)#手札の中にあるカードYの個数をカウント
            if count_i == 2 and count_j < 2:
                results.append(1)
            elif count_i == 2 and count_j == 2:
                results.append(2)
            elif count_i == 3 and count_j == 1:
                results.append(3)
            elif count_i == 4 and count_j == 1 :
                results.append(4)
            elif count_i == 3 and count_j == 2 :
                results.append(5)
            else:
                results.append(0)
    result = max(results)
    return dict_hands[result]

check_hand(10,8,11,11,4)