Sometimes, we can get elements in range as input but some values are missing in otherwise consecutive range. We might have a use case in which we need to get summation of all the missing elements. Let’s discuss certain ways in which this can be done.
Method #1 : Using list comprehension + sum()
We can perform the task of finding missing elements using the the range function to get the maximum element fill and then insert the elements if there is a miss. The summation is performed using sum().
# Python3 code to demonstrate # Consecutive Missing elements Sum # using list comprehension + sum() # initializing list test_list = [3, 5, 6, 8, 10] # printing original list print("The original list : " + str(test_list)) # using list comprehension + sum() # Consecutive Missing elements Sum res = sum([ele for ele in range(max(test_list) + 1) if ele not in test_list]) # print result print("The sum of missing elements : " + str(res)) |
The original list : [3, 5, 6, 8, 10] The sum of missing elements : 23
Method #2 : Using set() + sum()
This problem can also be performed using the properties of difference of set and then getting the elements that are missing in a range. The summation is performed using sum().
# Python3 code to demonstrate # Consecutive Missing elements Sum # Using set() + sum() # initializing list test_list = [3, 5, 6, 8, 10] # printing original list print("The original list : " + str(test_list)) # Using set() + sum() # Consecutive Missing elements Sum res = sum(list(set(range(max(test_list) + 1)) - set(test_list))) # print result print("The sum of missing elements : " + str(res)) |
The original list : [3, 5, 6, 8, 10] The sum of missing elements : 23
Recommended Posts:
- Python | Find missing elements in List
- Python - K difference Consecutive elements
- Python | Retain K consecutive elements
- Python | Consecutive remaining elements in list
- Python - Multiply Consecutive elements in list
- Python - Consecutive elements maximum frequencies
- Python | Consecutive elements pairing in list
- Python | Consecutive elements grouping in list
- Python - Similar Consecutive elements frequency
- Python - Concatenate consecutive elements in Tuple
- Python - Consecutive K elements join in List
- Python | Consecutive duplicates all elements deletion in list
- Python - Extract elements with Range consecutive occurrences
- Python | Concatenate N consecutive elements in String list
- Python - Maximum consecutive elements percentage change
- Python | Group consecutive list elements with tolerance
- Python | Consecutive Custom Chunked elements Product
- Python - Maximum length consecutive positive elements
- Python - Extract Missing Ranges
- Handling missing keys in Python dictionaries
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.
