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test #1

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20 changes: 10 additions & 10 deletions powerset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,8 @@

@author: zhengzhang
"""
import time
import matplotlib.pyplot as plt
#import time
#import matplotlib.pyplot as plt

# timing the execution of a function
def timeit(f, *args):
Expand All @@ -27,15 +27,15 @@ def powerset_add(l):
pass
# your code ends here
return pset

# play with the code below in the console, e.g get_bin_str(3, 5)
def get_bin_str(n, up_to):
code = bin(n).split('b')[-1]
if len(code) > up_to:
raise ValueError('not enough')
code = '0' * (up_to - len(code)) + code
return code

def powerset_comb(l):
pset = []
total_items = len(l)
Expand All @@ -48,16 +48,16 @@ def powerset_comb(l):
# your code ends here
pset.append(subset)
return pset

def main():

num_items = 4
my_list = list(range(num_items))

# test using inductive logic
my_pset = powerset_add(my_list)
print("using induction:\n", my_pset)

# test using combinational logic
my_pset = powerset_comb(my_list)
print("using combination:\n", my_pset)
Expand All @@ -69,9 +69,9 @@ def main():
takes = timeit(powerset_comb, my_list)
exec_time.append(takes)

print("powerset", exec_time)
print("powerset", exec_time)
# once you are done with powerset function, uncomment the line below
# and plot the execution time
plt.plot(exec_time)

main()
main()