Write a function called countElements that counts the number of times.pdf
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The document describes a function called 'countelements' which counts occurrences of two specified elements in a user-provided list. It outlines the function's inputs, its implementation in Python, and provides an example of usage that demonstrates counting both a character and a number in a list. The output of the function tells how many times the specified elements appear together.
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![Write a function called countElements that counts the number of times two elements appear in a
list. Your task is to ask the user to enter a list and two elements which they need to count in the
list. The list and each of the elements should be inputs to a function called countElements. The
function should print the count of the number of times the elements appear in the list. def
countElements(countUst, element1, element2): Example: if the inputs to the function were ("t",
"s", 7, 7, 2], "t", and 7, the function would count the instances of the letter T and the number 7
in the list, and print the number 3. There was one T and two 7's. Name your file
Lastname_Firstname.py
Solution
def countElements(list, ch1, ch2):
count = 0
for i in range(0,len(list)):
if list[i] == ch1:
count = count + 1
for i in range(0,len(list)):
if list[i] == ch2:
count = count + 1
return count;
print countElements(["t","s",7,7,2], "t", 7)
Output:
sh-4.3$ python main.py
3](https://image.slidesharecdn.com/writeafunctioncalledcountelementsthatcountsthenumberoftimes-230803004609-a9a24ab3/85/Write-a-function-called-countElements-that-counts-the-number-of-times-pdf-1-320.jpg)
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Write a function called countElements that counts the number of times.pdf
- 1. Write a function called countElements that counts the number of times two elements appear in a list. Your task is to ask the user to enter a list and two elements which they need to count in the list. The list and each of the elements should be inputs to a function called countElements. The function should print the count of the number of times the elements appear in the list. def countElements(countUst, element1, element2): Example: if the inputs to the function were ("t", "s", 7, 7, 2], "t", and 7, the function would count the instances of the letter T and the number 7 in the list, and print the number 3. There was one T and two 7's. Name your file Lastname_Firstname.py Solution def countElements(list, ch1, ch2): count = 0 for i in range(0,len(list)): if list[i] == ch1: count = count + 1 for i in range(0,len(list)): if list[i] == ch2: count = count + 1 return count; print countElements(["t","s",7,7,2], "t", 7) Output: sh-4.3$ python main.py 3