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# This is a scratch pad for randomly selected questions
# def char_and_rest(i, xs):
# return xs[i], xs[:i] + xs[i+1:]
# def perms(xs):
# if len(xs) == 1:
# return [xs]
# result = []
# for i in range(len(xs)):
# c, rest = char_and_rest(i, xs)
# for perm in perms(rest):
# result.append(c + ''.join(perm))
# return result
# print(perms(list("woah")))
# def f(take_out, dine_in, served):
# j, k = 0, 0
# for i in range(len(served)):
# if j < len(take_out) and served[i] == take_out[j]:
# j += 1
# elif k < len(dine_in) and served[i] == dine_in[k]:
# k += 1
# else:
# return False
# if j < len(take_out) or k < len(dine_in):
# return False
# return True
# take_out = [17, 8, 24]
# dine_in = [12, 19, 2]
# served = [17, 8, 12, 19, 24, 2]
# print(f(take_out, dine_in, served))
# def match(a, b):
# if a == '{':
# return b == '}'
# if a == '[':
# return b == ']'
# if a == '(':
# return b == ')'
# return False
# def f(xs):
# s = []
# for c in xs:
# if c in {'{', '[', '('}:
# s.append(c)
# elif c in {'}', ']', ')'}:
# opener = s.pop()
# if not match(opener, c):
# return False
# return len(s) == 0
# assert f("{[]()}")
# assert f("{[(])}") == False
# assert f("{[}") == False
# print("Success!")
# def valid_bst(node):
# lhs = max_bst_value(node.left) if node.left else float('-inf')
# rhs = min_bst_value(node.right) if node.right else float('inf')
# return and([
# lhs <= node.value,
# rhs > node.value,
# valid_bst(node.left),
# valid_bst(node.right),
# ])
import random
import math
def shuffle(xs):
n = len(xs)
for i in range(n - 1):
j = random.randint(i + 1, n - 1)
xs[i], xs[j] = xs[j], xs[i]
return xs
def as_card(i):
if i not in range(1, 53):
raise Exception("Not a card")
# 1
suit = ['Hearts', 'Clubs', 'Diamonds', 'Spades'][math.floor((i - 1) / 13)]
n = ['Ace',2,3,4,5,6,7,8,9,10,'Jack','Queen','King'][(i - 1) % 13]
return '{} of {}'.format(n, suit)
xs = list(range(1, 53))
print(xs)
shuffle(xs)
for x in xs:
print(as_card(x))
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