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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	    static int BeforeSpace(string before)
  6.         {
  7.             int length = before.Length;
  8.             string output = "";
  9.  
  10.             for (int i=0; i<length; i++)
  11.             {
  12.                if (!char.IsWhiteSpace(before[i]))
  13.                {
  14.                    output += before[i];
  15.                }
  16.                  else
  17.                {
  18.                   return Convert.ToInt32(output);
  19.                }
  20.             }
  21.          return 0;
  22.         }
  23.         static int AfterSpace(string after)
  24.         {
  25.             int length = after.Length;
  26.             string output = "";
  27.             bool startreading = false;
  28.             for (int i=0; i<length; i++)
  29.             {
  30.                if (char.IsWhiteSpace(after[i]))
  31.                {
  32.                    startreading = true;
  33.                }
  34.                if (startreading)
  35.                {
  36.                    output+=after[i];
  37.                }
  38.             }
  39.          return Convert.ToInt32(output);
  40.         }
  41.  
  42.         static bool isPrime(int value)
  43.         {
  44.             bool isPrime = true;
  45.             int sqrt = Convert.ToInt32(Math.Sqrt(value));
  46.             for (int i = 2; i<=sqrt; i++)
  47.             {
  48.                 if ((value%i)==0)
  49.                 {
  50.                     isPrime = false;
  51.                 }
  52.             }
  53.             return isPrime;
  54.         }
  55.  
  56.         static void returnprime(int a, int b)
  57.         {
  58. 			if (a==1)
  59. 			{
  60. 				a=2;
  61. 			}
  62.  
  63. 			for (; a<=b; a++)
  64. 			{
  65. 			   if (isPrime(a))
  66. 			   {
  67. 			       Console.WriteLine(a);
  68. 			   }
  69. 			}
  70.     	   Console.WriteLine(Environment.NewLine);
  71.         }
  72.  
  73. 	public static void Main()
  74. 	{
  75. 	    int amount = Convert.ToInt32(Console.ReadLine());
  76.  
  77.         for (int i = 0; i<amount; i++)
  78.         {
  79.             string textvalues = Console.ReadLine();   
  80.             int start_range = BeforeSpace(textvalues);
  81.             int end_range = AfterSpace(textvalues);
  82.             returnprime(start_range,end_range);
  83.         }
  84. 	}
  85. }
Success #stdin #stdout 0.01s 131648KB
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https://ideone.com/8Lzlre
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
secret

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