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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Diagnostics;
  6.  
  7. public class Program {
  8.     public static void Main(string[] args) {
  9.         var sw = new Stopwatch();
  10.  
  11.         var array = new double[10000000];
  12.         for (int i = 0; i < array.Length; i++) {
  13.             array[i] = Math.Exp(12);
  14.         }
  15.  
  16.         double tmp;
  17.  
  18.         {
  19.             sw.Reset();
  20.             sw.Start();
  21.  
  22.             for (int i = 0; i < array.Length; i++) {
  23.                 tmp = Math.Tanh(Math.Log(array[i]) / 7);
  24.             }
  25.  
  26.             sw.Stop();
  27.             Console.WriteLine("Loop using for: {0}ms", sw.Elapsed.TotalMilliseconds);
  28.         }
  29.  
  30.         {
  31.             sw.Reset();
  32.             sw.Start();
  33.  
  34.             foreach(double d in array){
  35.                 tmp = Math.Tanh(Math.Log(d) / 7);
  36.             }
  37.  
  38.             sw.Stop();
  39.             Console.WriteLine("Loop using foreach: {0}ms", sw.Elapsed.TotalMilliseconds);
  40.         }
  41.  
  42.     }
  43. }
  44.  
  45.  
Success #stdin #stdout 4.59s 115264KB
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stdin
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Standard input is empty
stdout
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Loop using for: 1936.1308ms
Loop using foreach: 1931.209ms
https://ideone.com/SkdJL
language:
C# (gmcs 5.20.1)
created:
13 years ago
visibility:
public

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