I need my program to print out execution time it took to compile, and show before quicksort and after. Heres my program so far. Its in python.
def quickSort(alist):
quickSortHelper(alist,0,len(alist)-1)
def quickSortHelper(alist,first,last):
if first<last:
splitpoint = partition(alist,first,last)
quickSortHelper(alist,first,splitpoint-1)
quickSortHelper(alist,splitpoint+1,last)
def partition(alist,first,last):
pivotvalue = alist[first]
leftmark = first+1
rightmark = last
done = False
while not done:
while leftmark <= rightmark and alist[leftmark] <=
pivotvalue:
leftmark = leftmark + 1
while alist[rightmark] >= pivotvalue and rightmark >=
leftmark:
rightmark = rightmark -1
if rightmark < leftmark:
done = True
else:
temp = alist[leftmark]
alist[leftmark] = alist[rightmark]
alist[rightmark] = temp
temp = alist[first]
alist[first] = alist[rightmark]
alist[rightmark] = temp
return rightmark
alist = [54,26,93,17,77,31,44,55,20]
quickSort(alist)
print(alist)
""" Python program to calculate the execution time of quick sort """ import time def quickSort(alist): quickSortHelper(alist,0,len(alist)-1) def quickSortHelper(alist,first,last): if first < last: splitpoint = partition(alist,first,last) quickSortHelper(alist,first,splitpoint-1) quickSortHelper(alist,splitpoint+1,last) def partition(alist,first,last): pivotvalue = alist[first] leftmark = first+1 rightmark = last done = False while not done: while leftmark <= rightmark and alist[leftmark] <= pivotvalue: leftmark = leftmark + 1 while alist[rightmark] >= pivotvalue and rightmark >= leftmark: rightmark = rightmark -1 if rightmark < leftmark: done = True else: temp = alist[leftmark] alist[leftmark] = alist[rightmark] alist[rightmark] = temp temp = alist[first] alist[first] = alist[rightmark] alist[rightmark] = temp return rightmark alist = [54,26,93,17,77,31,44,55,20] print("List before:", alist) start = time.time() quickSort(alist) end = time.time() timeTaken = end - start print("List after:", alist) print("Time Taken:", timeTaken)
I need my program to print out execution time it took to compile, and show before...
Using the code below, we need to implement the median-of-three method for selecting a pivot. If it is possible to add the code needed and any pseudo code as comments, that would be helpful. Thank you Code: def quickSort(alist): quickSortHelper(alist,0,len(alist)-1) def quickSortHelper(alist,first,last): if first<last: splitpoint = partition(alist,first,last) quickSortHelper(alist,first,splitpoint-1) quickSortHelper(alist,splitpoint+1,last) def partition(alist,first,last): pivotvalue = alist[first] leftmark = first+1 rightmark = last done = False while not done: while leftmark <= rightmark and \ alist[leftmark] <= pivotvalue: leftmark = leftmark + 1...
Python - Recursive to non-recursive quick sort. What I have at the moment is a recursive quick sort, I need to make it non-recursive, any help is appreciated! def quickSort(list): quickSortHelper(list, 0, len(list) - 1) def quickSortHelper(list, first, last): if last > first: pivotIndex = partition(list, first, last) quickSortHelper(list, first, pivotIndex - 1) quickSortHelper(list, pivotIndex + 1, last) # Partition list[first..last] def partition(list, first, last): pivot = list[first] # Choose the first element as...
For my computer class I have to create a program that deals with
making and searching tweets. I am done with the program but keep
getting the error below when I try the first option in the shell.
Can someone please explain this error and show me how to fix it in
my code below? Thanks!
twitter.py - C:/Users/Owner/AppData/Local/Programs/Python/Python38/twitter.py (3.8.3) File Edit Format Run Options Window Help import pickle as pk from Tweet import Tweet import os def show menu():...
Need help with Python (BinarySearch), code will be below after my statements. Thank you. Have to "Add a counter to report how many searches have been done for each item searched for." Have to follow this: 1) you'll create a counter variable within the function definition, say after "the top = len(myList)-1" line and initialize it to zero. 2) Then within the while loop, say after the "middle = (bottom+top)//2" line, you'll start counting with "counter += 1" and 3)...
I want to replace true with the number of comparisons that were made. For example, if I have a list of [1,4,5,6,7,8] and I ask the program to find 6. is it possible to tell me how many comparisons it took to find 6? PYTHON here is my code: def linear_search(vals,target): for val in vals: if val == target: return True return -1 def binary_search(vals,target): lo = 0 hi = len(vals)-1 mid(lo+hi)//2 while lo <= hi and vals [mid]!=target: if target...
Please, I need help debuuging my code. Sample output is below MINN = 1 MAXX = 100 #gets an integer def getValidInt(MINN, MAXX): message = "Enter an integer between" + str(MINN) + "and" + str(MAXX)+ "(inclusive): "#message to ask the user num = int(input(message)) while num < MINN or num > MAXX: print("Invalid choice!") num = int(input(message)) #return result return num #counts dupes def twoInARow(numbers): ans = "No duplicates next to each...
Need help the first picture is the code I have so far the
second are the requirements. It’s a deque array in python
class dequeArray: DEFAULT-CAPACITY 10 #moderate capacity for all new queues def init (self): self.capacity-5 capacity self.capacity self.data self, make array(self. capacity) self. size self. front-θ def len (self): return self. size def _getiten-(self, k); #Return element at index k if not θ k < self. size: raise IndexError('invalid index) return self._data[k] def isEmpty(self): if self. data0: return...
I'm making a To-Do list in Python 2 and had the program running
before remembering that my professor wants me to put everything in
procedures. I can't seem to get it to work the way I have it now
and I can't figure it out. I commented out the lines that was
originally in the working program and added procedures to the top.
I've attached a screenshot of the error & pasted the code
below.
1 todo_list = []
2...
i have no lean break. so below is my way. can you fix it.
Test Input Result print (read_number_list()) 999 [] print (read_number_list)) 1 Answer (penalty regime: 0, 10, 20, 30, 40, 50%) 1 def read_number_list(): alist = [] while True: - numberinput("") if number -999: 4 return a listl else: a_list.append (int (number)) 9 1e 12 Precheck Check Test Input Expected Got print (read_number_list()) 999 [] Runtime error** Traceback (most recent call last): File "prog.python3", line 29, in <module>...
Hey I have a task which consists of two part. Part A asks for
writing a program of WORD & LINE CONCORDANCE
APPLICATION in python which I have completed it.
Now the second part has given 5 dictionary implementation codes
namely as: (ChainingDict, OpenAddrHashDict with linear probing,
OpenAddrHashDict with quadratic probing, and 2 tree-based
dictionaries from lab 12 (BST-based dictionary implementation) and
asks for my above program WORD & LINE CONCORDANCE
APPLICATION to use these implemented code and
show the time...