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Program.cs
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Program.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SwappingArrayElements
{
class Program
{
static void Main(string[] args)
{
int[] a1 = { 1, 2, 3, 4, 5 }; // length of array is 5 - ODD
int temp1;
Console.WriteLine("Values before swapping: \n");
for (int old = 0; old < a1.Length; old++)
{
Console.WriteLine( a1[old]);
}
//Logic - Start
//If the length is Even
if (a1.Length % 2 == 0)
{
for (int i = 0; i < a1.Length; i += 2)
{
//Console.WriteLine(a1[i]);
temp1 = a1[i];
a1[i] = a1[i + 1];
a1[i + 1] = temp1;
}
}
//If the length is Odd.
else
{
for (int i = 0; i < a1.Length - 1; i += 2)
{
temp1 = a1[i];
a1[i] = a1[i + 1];
a1[i + 1] = temp1;
}
}
//Logic - End
Console.WriteLine("Values after swapping: \n");
for (int j = 0; j < a1.Length; j++)
{
Console.WriteLine(a1[j]);
}
Console.ReadLine();
}
}
}