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  1. import time
  2.  
  3. N=10**6
  4. M=20
  5.  
  6. def square0(x):
  7.     return x*x
  8.  
  9. def square1(x):
  10.     def dummy(y):
  11.         return y*y
  12.     return x*x
  13.  
  14. def square2(x):
  15.     def dummy1(y):
  16.         return y*y
  17.     def dummy2(y):
  18.         return y*y
  19.     return x*x
  20.  
  21. def square5(x):
  22.     def dummy1(y):
  23.         return y*y
  24.     def dummy2(y):
  25.         return y*y
  26.     def dummy3(y):
  27.         return y*y
  28.     def dummy4(y):
  29.         return y*y
  30.     def dummy5(y):
  31.         return y*y
  32.     return x*x
  33.  
  34. test01_first=True
  35. test02_first=True
  36. test03_first=True
  37. test04_first=True
  38.  
  39. for  j in range(M):
  40.     start=time.time()
  41.     s=0
  42.     for i in range(N):
  43.         s+=square0(i)
  44.     end=time.time()
  45.     test01_time=end-start
  46.     if test01_first:
  47.         test01_sum=test01_time
  48.         test01_sqs=0
  49.         test01_approx=test01_time
  50.         test01_cnt=1
  51.         test01_first=False
  52.     else:
  53.         test01_sum+=test01_time
  54.         test01_sqs+=(test01_time-test01_approx)**2
  55.         test01_cnt+=1
  56.  
  57.     start=time.time()
  58.     s=0
  59.     for i in range(N):
  60.         s+=square1(i)
  61.     end=time.time()
  62.     test02_time=end-start
  63.     if test02_first:
  64.         test02_sum=test02_time
  65.         test02_sqs=0
  66.         test02_approx=test02_time
  67.         test02_cnt=1
  68.         test02_first=False
  69.     else:
  70.         test02_sum+=test02_time
  71.         test02_sqs+=(test02_time-test02_approx)**2
  72.         test02_cnt+=1
  73.  
  74.     start=time.time()
  75.     s=0
  76.     for i in range(N):
  77.         s+=square2(i)
  78.     end=time.time()
  79.     test03_time=end-start
  80.     if test03_first:
  81.         test03_sum=test03_time
  82.         test03_sqs=0
  83.         test03_approx=test03_time
  84.         test03_cnt=1
  85.         test03_first=False
  86.     else:
  87.         test03_sum+=test03_time
  88.         test03_sqs+=(test03_time-test03_approx)**2
  89.         test03_cnt+=1
  90.  
  91.     start=time.time()
  92.     s=0
  93.     for i in range(N):
  94.         s+=square5(i)
  95.     end=time.time()
  96.     test04_time=end-start
  97.     if test04_first:
  98.         test04_sum=test04_time
  99.         test04_sqs=0
  100.         test04_approx=test04_time
  101.         test04_cnt=1
  102.         test04_first=False
  103.     else:
  104.         test04_sum+=test04_time
  105.         test04_sqs+=(test04_time-test04_approx)**2
  106.         test04_cnt+=1
  107.  
  108. test01_avg=test01_sum/test01_cnt
  109. test02_avg=test02_sum/test02_cnt
  110. test03_avg=test03_sum/test03_cnt
  111. test04_avg=test04_sum/test04_cnt
  112. test01_std=((test01_sqs-(test01_sum-test01_cnt*test01_approx)**2/test01_cnt)/(test01_cnt-1))**.5
  113. test02_std=((test02_sqs-(test02_sum-test02_cnt*test02_approx)**2/test02_cnt)/(test02_cnt-1))**.5
  114. test03_std=((test03_sqs-(test03_sum-test03_cnt*test03_approx)**2/test03_cnt)/(test03_cnt-1))**.5
  115. test04_std=((test04_sqs-(test04_sum-test04_cnt*test04_approx)**2/test04_cnt)/(test04_cnt-1))**.5
  116. print("m = mean, s = standard deviation, m0 = mean of first testcase")
  117. print("[m-3s,m+3s] is a 0.997 confidence interval if normal distributed")
  118. print()
  119. print("square?","{0:5} {1:7} {2:5} [{3:5},{4:5}]".format("m","s","m/m0","m-3s","m+3s"))
  120. print("square0","{0:5.3f} {1:7.5f} {2:5.3f} [{3:5.3f},{4:5.3f}]".format(test01_avg,test01_std,test01_avg/test01_avg,test01_avg-3*test01_std,test01_avg+3*test01_std))
  121. print("square1","{0:5.3f} {1:7.5f} {2:5.3f} [{3:5.3f},{4:5.3f}]".format(test02_avg,test02_std,test02_avg/test01_avg,test02_avg-3*test02_std,test02_avg+3*test02_std))
  122. print("square2","{0:5.3f} {1:7.5f} {2:5.3f} [{3:5.3f},{4:5.3f}]".format(test03_avg,test03_std,test03_avg/test01_avg,test03_avg-3*test03_std,test03_avg+3*test03_std))
  123. print("square5","{0:5.3f} {1:7.5f} {2:5.3f} [{3:5.3f},{4:5.3f}]".format(test04_avg,test04_std,test04_avg/test01_avg,test04_avg-3*test04_std,test04_avg+3*test04_std))
  124.  
  125.  
Time limit exceeded #stdin #stdout 5s 10088KB
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https://ideone.com/slaRls
language:
Python 3 (python  3.9.5)
created:
10 years ago
visibility:
public

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