Find the Largest Integer in an Array

Problem

Given an array of integers, write a function that finds the largest integer in the array.
Example input: [1, 2, 3, 4, 5]
Example output: 5

Solution

This solution is in JavaScript. Our A.I. can create solutions in multiple languages.

kayakane

// Solution:

function findLargest(arr) {
  let largest = arr[0];
  for (let i = 1; i < arr.length; i++) {
    if (arr[i] > largest) {
      largest = arr[i];
    }
  }
  return largest;
}

// Explanation:

// This solution is optimal because it only iterates through the array once.
// It does this by keeping track of the largest number seen so far, and updating it if a larger number is found.
// This is optimal because it only iterates through the array once, and it does not use any extra space.