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Computer Science Introduction to Algorithms Algorithms in Code Linear Search in Code

Posted by Henry Brenton
Henry Brenton
10,144 Points

Nothing is printing to the console - I've checked my code several times, can't see anything wrong with it

Hi all,

I've followed the code in this video, and checked it several times, so am confident my code is correct, however, nothing prints to the console when I run the program, in either case for the indices.

Please could I have some help in understanding what the problem is?

My code is as follows:

def linear_search(list, target): """ Returns the index position of the target if found, else returns None """

for i in range(0, len(list)):
    if list[i] == target:
        return i
return None

def verify(index):
    if index is not None:
        print("Target found at index: ", index)
    else:
        print("Target not found in list")

numbers = [1,2,3,4,5,6,7,8,9,10]

result = linear_search(numbers, 12)
verify(result)

result = linear_search(numbers, 6)
verify(result)

Many Thanks

Henry

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points

From the above it looks like your for loop lines up with def verify. It needs to be indented

def linear_search(list, target):
    """
    Returns the index position of the target if found, else returns None
    """
    for i in range(0, len(list)):
        if list[i] == target:
            return i
    return None

def verify(index):
    if index is not None:
        print("Target found at index: ", index)
    else:
        print("Target not found in list")

numbers = [1,2,3,4,5,6,7,8,9,10]

result = linear_search(numbers, 12)
verify(result)

result = linear_search(numbers, 6)
verify(result)
Henry Brenton
Henry Brenton
10,144 Points

Indeed - silly me, thank you! I need to readjust to this whole 'indentation' thing

Marcel Durgante Ramos
Marcel Durgante Ramos
79 Points
Marcel Durgante Ramos
Marcel Durgante Ramos
79 Points

Hey team,

I am using Javascript. How can I output to the console the result of my code?

I have tried: node linear_search.js and node linear_search but nothing returns.

Thank you for your help.