convert query in python

Question

HI

how to convert this query in python

A= [1,2,1,1,1,2,2,3,4,5,5,5,5]

get the unique values from the given list without using built in function

 B = [1,2,3,4,5] 

Answer 1

@Vineet S

Thanks for reaching out on Microsoft Q&A.

To extract unique values from a list in Python without using built-in functions, you can use a simple loop to check for duplicates. Here’s how you can do it:

A = [1, 2, 1, 1, 1, 2, 2, 3, 4, 5, 5, 5, 5]
B = []
for item in A:
    if item not in B:
        B.append(item)
print(B)  # Output: [1, 2, 3, 4, 5]

Explanation:

1. Initialize an empty list B to store unique values.
2. Loop through each item in list A.
3. Check if the item is not already in B. If it’s not, append it to B.
4. Finally, print B to see the unique values.

This method effectively builds a new list of unique items without using any built-in functions

Hope this helps. Do let us know if you any further queries.

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Answer 2

Hello Vineet S ,

Thanks for reaching out on Microsoft Q&A.

First create a new list to store these unique values. Then iterate through the original list, checking if each element is already present in the new list. If not, add it to the new list.

A = [1, 2, 1, 1, 1, 2, 2, 3, 4, 5, 5, 5, 5]
B = []  # Initialize an empty list to store unique values

for item in A:
    # Add item to B if it's not already present
    if item not in B:
        B.append(item)

print(B)  # Output will be [1, 2, 3, 4, 5]

Hope this helps!

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