Arrays and Strings

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Sum of Array Elements

kayakane

Code Problem / Data Structures and Algorithms DifficultyMedium Python

The problem asks for the sum of all elements in an array. An example input is given as [1, 2, 3, 4, 5] and the expected output is 15.

About this solution: The candidate's solution is correct and demonstrates a level of completeness. The candidate has used the built-in sum function, which is an optimal solution.

Nov 12

reverse_string.py

kevinash

Code Problem / Data Structures and Algorithms Python

Given a string consisting of only lowercase letters, this program generates a new string with the same letters in reverse order. For example, an input of "abcdefg" would produce an output of "gfedcba".

About this solution: The candidate's solution is correct and uses the built-in function reversed(). The time and space complexity of the solution is O(n).

Nov 11

Find the sum of all elements in an array.

kevinash

Code Problem / Data Structures and Algorithms Python

To find the sum of all elements in an array, simply iterate through the array and add each element to a total sum.

About this solution: The candidate's solution is correct and demonstrates a level of completeness. The candidate's approach is clear and understandable.

Oct 27