├── code1.cs
├── code2.cs
└── code3.cs


/code1.cs:
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 1 | using System;
 2 | using  System.Threading;
 3 | using System.Diagnostics;
 4 | 
 5 | 
 6 | namespace ConsoleApp8{
 7 | 
 8 | class Program{
 9 | 
10 | static void Main(string [] args ){
11 | Stopwatch watch = new Stopwatch();
12 | watch.Start();
13 | for(int index=0; index<15; index++){
14 | 	Console.WriteLine("Digging completed for" + index + "mtr. area");
15 | Thread.Sleep(1000);
16 | }
17 | watch.Stop();
18 | Console.WriteLine("Time required single handed: "  + watch.Elapsed.Seconds);
19 | }
20 | }
21 | }
22 | 


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/code2.cs:
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 1 | using System;
 2 | using System.Threading;
 3 | using System.Threading.Tasks;
 4 | using System.Diagnostics;
 5 | 
 6 | namespace ConsoleApp{
 7 | class Program{
 8 | static void Main(){
 9 | Stopwatch watch = new Stopwatch();
10 | watch.Start();
11 | 
12 | Parallel.For(0, 15, index=> {
13 | Console.WriteLine("Digging completed for" + index + "mtr. area");
14 | Thread.Sleep(1000);
15 | }
16 | );
17 | watch.Stop();
18 | Console.WriteLine("Time required more than 1 persons digginng:{0} secounds"  + watch.Elapsed.Seconds);
19 | }
20 | }
21 | }
22 | 


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/code3.cs:
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 1 | using System;
 2 | using System.Threading;
 3 | using System.Threading.Tasks;
 4 | using System.Diagnostics;
 5 | 
 6 | namespace ConsoleApp{
 7 | class Program{
 8 | static void Main(){
 9 | Stopwatch watch = new Stopwatch();
10 | watch.Start();
11 | var maxthread = new ParallelOptions(){
12 | MaxDegreeOfParallelism = 2
13 | };
14 | Parallel.For(0, 15, maxthread, index=> {
15 | Console.WriteLine("Digging completed for" + index + "mtr. area");
16 | Thread.Sleep(1000);
17 | }
18 | );
19 | watch.Stop();
20 | Console.WriteLine("Time required more than 1 persons digginng:{0} secounds"  + watch.Elapsed.Seconds);
21 | }
22 | }
23 | }
24 | 


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