「自作Python100本ノック」5日目（Googleサマーインターン選考問題受けてみた：20本〜25本目） ref: https://qiita.com/ahpjop/items/0dffbfbae7609329c5ca

q21.py

def cal_patern(a,b,c,x):
    count = 0
    for i in range(a + 1):
        for j in range(b + 1):
            for k in range(c + 1):
                if 500 * i + 100 * j + 50 * k == x:
                    count += 1
    return count

cal_patern(3,5,6,1500)

q22.py

def pocket(aim):
    count = 0
    biskets = 1
    while biskets < aim:
        count += 1
        biskets = 2 ** count
    else:
        print("{}回ポケットを叩いてください".format(count))

pocket(10)

q23.py

def check_pass(password):
    if len(password) >= 10 and not password.isalpha() and not password.isnumeric() and not password.islower() and not password.isupper():
        return True
    else:
        return False
print(check_pass("aiasgiHSU43"))

q24.py

import string

def find_frequent_word(text):
    text = text.lower()
    return max(string.ascii_lowercase, key=text.count)

a = find_frequent_word("aiasfiah faihasjn8348 y5iHsuasHuUUUUUuuuurbuurugjsghfoas")
print(a)

q25_a.py

def long_repeat(line):
    if line=='':
        return(0)
    else:       
        count=1
        count_chr=[1]
        for i in range(1,len(line)):
            if line[i-1]==line[i]:
                count +=1
            else:
                count = 1
            count_chr.append(count)
        return max(count_chr)

q25_b.py

def long_repeat(line):
    count = 1
    maxi = 1
    if line != "":
        for i in range(1,len(line)):
            if line[i] == line[i-1]:
                count+=1
                if count > maxi:
                    maxi = count
            else:
                count = 1
        return maxi
    else:
        return 0