标签:large return make nonlocal cs61a fib lst 2020 lab06
网址 https://inst.eecs.berkeley.edu/~cs61a/fa20/lab/lab06/#topics
problem124:
this_file = __file__
def make_adder_inc(a):
"""
>>> adder1 = make_adder_inc(5)
>>> adder2 = make_adder_inc(6)
>>> adder1(2)
7
>>> adder1(2) # 5 + 2 + 1
8
>>> adder1(10) # 5 + 10 + 2
17
>>> [adder1(x) for x in [1, 2, 3]]
[9, 11, 13]
>>> adder2(5)
11
"""
"*** YOUR CODE HERE ***"
c = -1
def fun(b):
nonlocal c
c += 1
return a + b + c
return fun
def make_fib():
"""Returns a function that returns the next Fibonacci number
every time it is called.
>>> fib = make_fib()
>>> fib()
0
>>> fib()
1
>>> fib()
1
>>> fib()
2
>>> fib()
3
>>> fib2 = make_fib()
>>> fib() + sum([fib2() for _ in range(5)])
12
>>> from construct_check import check
>>> # Do not use lists in your implementation
>>> check(this_file, 'make_fib', ['List'])
True
"""
"*** YOUR CODE HERE ***"
a = 1
b = 1
c = 1
n = 1
def fun():
nonlocal a
nonlocal b
nonlocal c
nonlocal n
if n == 1:
n += 1
return 0
if n == 2:
n += 1
return 1
if n == 3:
n += 1
return 1
a = b
b = c
c = a + b
return c
return fun
def insert_items(lst, entry, elem):
"""
>>> test_lst = [1, 5, 8, 5, 2, 3]
>>> new_lst = insert_items(test_lst, 5, 7)
>>> new_lst
[1, 5, 7, 8, 5, 7, 2, 3]
>>> large_lst = [1, 4, 8]
>>> large_lst2 = insert_items(large_lst, 4, 4)
>>> large_lst2
[1, 4, 4, 8]
>>> large_lst3 = insert_items(large_lst2, 4, 6)
>>> large_lst3
[1, 4, 6, 4, 6, 8]
>>> large_lst3 is large_lst
True
"""
"*** YOUR CODE HERE ***"
num = 0
flag = 0
for i in lst:
if entry == elem:
if flag == 1:
flag = 0
continue
if i == entry:
lst.insert(num + 1, elem)
flag = 1
num += 1
return lst
problem3:
标签:large,return,make,nonlocal,cs61a,fib,lst,2020,lab06 来源: https://www.cnblogs.com/echoT/p/16078504.html
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