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  1. using System;
  2. using System.Text;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		Random r = new Random();
  9. 		StringBuilder builder= new StringBuilder();
  10.  
  11.  
  12. 		int numOfOperand = r.Next(1, 20); // it is just a test so I just want to have up to 5 operands.
  13. 		int randomNumber;
  14. 		for(int i = 0 ; i<numOfOperand ; i++){
  15.  
  16. 			randomNumber = r.Next(1, 1000);
  17. 			builder.Append(randomNumber);
  18.  
  19.  
  20. 			int randomOperand = r.Next(1, 4);
  21.  
  22. 			string operand = null;
  23.  
  24. 			switch (randomOperand)
  25. 			{
  26. 			    case 1:
  27. 					operand = "+";
  28. 				break;
  29. 			    case 2:
  30. 			    	operand = "-";
  31. 				break;
  32. 			    case 3:
  33. 			    	operand = "*";
  34. 				break;
  35. 			    case 4:
  36. 			    	operand = "/";
  37. 				break;
  38. 			}
  39. 			builder.Append(operand);
  40. 		}
  41. 		randomNumber = r.Next(1, 1000);
  42. 			builder.Append(randomNumber);
  43.  
  44. 		Console.WriteLine(builder.ToString());
  45. 	}
  46. }
Success #stdin #stdout 0.03s 24128KB
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Standard input is empty
stdout
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462*823-61-263+518*490*479+851+276+13-208-418-537+486+476+15*227-274
https://ideone.com/4BheNh
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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