Python Program To Reverse An Array

Chapter: Python Last Updated: 23-09-2023 03:18:37 UTC

Program:

            /* ............... START ............... */
                

// Using a for loop:

def reverse_array(arr):
    n = len(arr)
    for i in range(n // 2):
        arr[i], arr[n - i - 1] = arr[n - i - 1], arr[i]

# Example usage:
my_array = [1, 2, 3, 4, 5]
reverse_array(my_array)
print(my_array)  # Output: [5, 4, 3, 2, 1]


// Using list slicing:

def reverse_array(arr):
    arr[:] = arr[::-1]

# Example usage:
my_array = [1, 2, 3, 4, 5]
reverse_array(my_array)
print(my_array)  # Output: [5, 4, 3, 2, 1]


// Using the reverse() method:

def reverse_array(arr):
    arr.reverse()

# Example usage:
my_array = [1, 2, 3, 4, 5]
reverse_array(my_array)
print(my_array)  # Output: [5, 4, 3, 2, 1]



                /* ............... END ............... */
        

Output

Output: [5, 4, 3, 2, 1]

Notes:

  • Any of these methods will reverse the elements of the array in place. Choose the one that you find most readable and suitable for your needs.
Similar Programs Chapter Last Updated
Python Program To Check Whether Element Present In Set Or Not Example Python 04-10-2023
Python Program To Find Maximum And Minimum Number In A Set Python 04-10-2023
Python Program To Check Symmetric Matrix Python 04-10-2023
Python Program To Find Subsets Of A Set Python 04-10-2023
Python Program To Find Power Set Of A Set Python 04-10-2023
Remove All Duplicates From List Python Python 04-10-2023
Python Program To Find Symmetric Difference Of Two Sets Python 27-09-2023
Python Program To Find Common Item From Two Set Python 27-09-2023
Python Program To Get Unique Values From A List Python 27-09-2023
Python Encode And Decode String With Key Python 24-09-2023
Python Simple Encrypt Decrypt String Python 24-09-2023
Python Format String To Specific Length Python 24-09-2023
Python Code To Check If String Contains Substring Python 24-09-2023
Python Program To Find Most Repeated Word In A String Python 23-09-2023
Split String Into Words Python Python 23-09-2023
Remove All Punctuation Python Python 23-09-2023
Python Program To Find Number Of Palindrome In A String Python 23-09-2023
Python Program To Find Longest Common Substring Python 23-09-2023
Python Program To Find Number Of Days In A Given Month And Year Python 22-09-2023
Python Program To Calculate Age Of A Person Python 22-09-2023
Python Code To Get Day Of Week Python 22-09-2023
Python Convert String To Date Without Time Python 22-09-2023
Python Program To Print Current Date And Time In Format dd/mm/yyyy Python 22-09-2023
Python Program To Find Working Days In A Month Python 19-09-2023
Python Code To Change Date Format Python 16-09-2023
Python Program To Calculate Number Of Days Between Two Dates Python 16-09-2023
Python Program To Calculate Age In Years Months And Days Python 16-09-2023
Python Program To Schedule A Job To Run After A Certain Amount Of Time Python 10-08-2023
Python Program To Schedule A Job To Run Randomly Once A Day Python 10-08-2023
Python Program To Schedule A Job To Run Every Hour Python 10-08-2023

1 2 3 4