Python BasicsEasy

Largest element in an array

Detailed guide and Python implementation for the 'Largest element in an array' problem.

Problem Statement

Easy

Write a function find_largest(arr) that finds and returns the largest element in the given array arr using recursion. The function takes a list of integers as input and returns a single integer — the maximum value in the list.

Constraints
  • 1 <= len(arr) <= 1000
  • -10^6 <= arr[i] <= 10^6

Examples

Example 1
Input
arr = [1, 4, 3, -5, 15]
Output
15
Explanation

Among all elements, 15 is the largest.

Example 2
Input
arr = [10, 20, 5, 8]
Output
20
Explanation

20 is the maximum value in the array.

Example 3
Input
arr = [-3, -7, -1, -9]
Output
-1
Explanation

Among all negative numbers, -1 is the largest.

Need a Hint?
Consider using Recursion-specific data structures like sets or heaps.
Edge Cases to Watch
  • Empty input structures
  • Single element inputs
  • Large numerical bounds

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