Sort {5,1,4,2,8} using bubble sort and print.
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using System;
class Program
{
static void Main()
{
int[] arr = { 5, 1, 4, 2, 8 };
for (int i = 0; i < arr.Length - 1; i++)
for (int j = 0; j < arr.Length - 1 - i; j++)
if (arr[j] > arr[j + 1])
(arr[j], arr[j + 1]) = (arr[j + 1], arr[j]);
Console.WriteLine(string.Join(", ", arr));
}
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Bubble sort is O(n²)—know it for interviews even if you use Array.Sort in production.
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