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  1. from time import clock
  2.  
  3. def a(n):
  4.     return n + 1
  5.  
  6. def b1(loopcount):
  7.     return sum([a(n) for n in range(loopcount)])
  8.  
  9. def b2(loopcount):
  10.     def a(n):
  11.         return n + 1
  12.     return sum([a(n) for n in range(loopcount)])
  13.  
  14. def b3(loopcount):
  15.     global a
  16.     la = a
  17.     return sum([la(n) for n in range(loopcount)])
  18.  
  19. powers = [5, 6, 7]
  20. b1times = []
  21. b2times = []
  22. b3times = []
  23. print "   ", "".join(["{:^10d}".format(n) for n in powers])    
  24. for i in range(5):
  25.     for power in powers:
  26.         t = clock()
  27.         b1(10**power)
  28.         b1times.append(clock() - t)
  29.     for power in powers:
  30.         t = clock()
  31.         b2(10**power)
  32.         b2times.append(clock() - t)
  33.     for power in powers:
  34.         t = clock()
  35.         b3(10**power)
  36.         b3times.append(clock() - t)
  37.     print "b1:", "".join(["{:^10.5f}".format(n) for n in b1times])
  38.     print "b2:", "".join(["{:^10.5f}".format(n) for n in b2times])
  39.     print "b3:", "".join(["{:^10.5f}".format(n) for n in b3times])
  40.     print ""
  41.     b1times = []
  42.     b2times = [] 
  43.     b3times = []
Runtime error #stdin #stdout 2.51s 10896KB
comments (?)
stdin 
Standard input is empty
stdout 
        5         6         7
https://ideone.com/SHMETg
language:
Python (cpython 2.7.16)
created:
11 years ago
visibility:
public

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