import random import time deforderedSequentialSearch(alist, item): pos = 0 found

Question

import random

import time

deforderedSequentialSearch(alist, item):
    pos = 0
    found = False
    stop = False
    while pos < len(alist) and not found and notstop:
        if alist[pos] ==item:
           found = True
        else:
           if alist[pos] > item:
               stop = True
           else:
               pos = pos+1

    returnfound

def main():
    start = time.clock()
    for count in range(1,100):
       
        printrandom.randint

        count =orderedSequentialSearch(alist)
        random.randint =orderedSequentialSearch(item)
        elapsed = (time.clock()- start)
        if found == False:
           print item, ("was not found in the list . Time : "),elapsed
        else:
           print item, ("was found in the the list. Time : "), elapsed
           
    start = time.clock()
   
    for count in range(1,1000):
        printrandom.randint

        count =orderedSequentialSearch(alist)
        random.randint =orderedSequentialSearch(item)
        elapsed = (time.clock()- start)
        if found == False:
           print item, ("was not found in the list . Time : "),elapsed
        else:
           print item, ("was found in the the list. Time : "), elapsed
           
    start = time.clock()
    for count in range(1,10000):
       
        print random.randint
        elapsed = (time.clock()- start)
        count =orderedSequentialSearch(alist)
        random.randint =orderedSequentialSearch(item)
        
        if found == False:
           print item, ("was not found in the list . Time : "),elapsed
        else:
           print item, ("was found in the the list. Time :"),elapsed

main()
       

Explanation / Answer

import randomfrom Numeric import *import timedef orderedSequentialSearch(alist, item):pos = 0found = Falsestop = Falsewhile pos item:stop = Trueelse:pos = pos+1return founddef main():start = time.clock()for count in range(1,100):item=random.randint(1,10)print random.randintalist = array(random.randint)found = orderedSequentialSearch(alist,item)elapsed = (time.clock() - start)if found == False:print item, ("was not found in the list . Time : "),elapsedelse:print item, ("was found in the the list. Time : "), elapsedstart = time.clock()for count in range(1,1000):item=random.randint(1,10)print random.randintcount = orderedSequentialSearch(alist,item)elapsed = (time.clock() - start)if found == False:print item, ("was not found in the list . Time : "),elapsedelse:print item, ("was found in the the list. Time : "), elapsedstart = time.clock()for count in range(1,10000):item=random.randint(1,10)print random.randintelapsed = (time.clock() - start)count = orderedSequentialSearch(alist,item)if found == False:print item, ("was not found in the list . Time : "),elapsedelse:print item, ("was found in the the list. Time : "),elapsedmain()

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