# Array updating problem for using mapint input split in python

When working with arrays in Python, it is common to encounter situations where we need to update the elements of the array based on certain conditions or requirements. In this article, we will explore different ways to solve the array updating problem using the map() function, the int() function, and the split() function in Python.

## Solution 1: Using map() function

``````
# Input array
arr = [1, 2, 3, 4, 5]

# Update array elements using map() function
updated_arr = list(map(lambda x: x * 2, arr))

# Print updated array
print(updated_arr)
``````

In this solution, we use the map() function along with a lambda function to update each element of the array. The lambda function multiplies each element by 2, effectively doubling the values. The map() function applies this lambda function to each element of the array and returns a new list with the updated values. Finally, we convert the map object to a list and print the updated array.

## Solution 2: Using int() function

``````
# Input array as string
arr_str = "1 2 3 4 5"

# Convert string to list of integers
arr = list(map(int, arr_str.split()))

# Update array elements
updated_arr = [x * 2 for x in arr]

# Print updated array
print(updated_arr)
``````

In this solution, we start with the input array as a string. We use the split() function to split the string into individual elements based on the space delimiter. Then, we use the map() function along with the int() function to convert each element from string to integer. Next, we update the array elements by multiplying each element by 2 using a list comprehension. Finally, we print the updated array.

## Solution 3: Using split() function

``````
# Input array as string
arr_str = "1 2 3 4 5"

# Update array elements using split() function
updated_arr = [int(x) * 2 for x in arr_str.split()]

# Print updated array
print(updated_arr)
``````

In this solution, we follow a similar approach as Solution 2. We start with the input array as a string and use the split() function to split the string into individual elements. Then, we update the array elements by multiplying each element by 2 using a list comprehension. Finally, we print the updated array.

After analyzing the three solutions, Solution 3 is the better option. It achieves the same result as Solution 2 but with a more concise and readable code. It eliminates the need for the map() function and directly performs the conversion and updating of array elements in a single step using a list comprehension.

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### 10 Responses

1. Bria says:

I think Solution 2 is the way to go! Simple and efficient. Who needs complicated stuff?

2. Chelsea CortéZ says:

Solution 3 using split() seems more intuitive and less complicated, Id go with that!

3. Huxley Rivas says:

Solution 1 seems more efficient for updating arrays. Who needs split() and int() anyway? 🤷‍♀️

4. Ocean says:

I think Solution 2 is the best because int() function is simple and efficient.

I respectfully disagree. While the int() function may be simple and efficient, Solution 1 offers more flexibility and error handling with its try-except block. Its always better to prioritize accuracy and reliability over simplicity alone.

5. Lorelai says:

Solution 3 seems like the quickest and easiest way to update arrays using split() function.

6. Elaina CortéZ says:

Solution 3: Using split() function seems like the most elegant solution to me. 🧐

7. Malani Daugherty says:

Solution 2 seems to be the most straightforward and efficient. Whos with me?

8. Sawyer says:

Solution 4: Why not try a combination of map(), int(), and split() functions? #ExperimentingIsFun

9. Judith says:

Solution 1 is the way to go, map() function saves you time and effort. #PythonPower