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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5.  
  6. namespace KULE
  7. {
  8.     class Program
  9.     {
  10.         private static int spheres;
  11.         private static int minLeft = 1;
  12.         private static int maxLeft;
  13.         private static bool oddIsLight;
  14.  
  15.         static void Main(string[] args)
  16.         {
  17.             spheres = maxLeft = int.Parse(Console.ReadLine());
  18.             oddIsLight = Triage();
  19.             while (minLeft != maxLeft)
  20.             {
  21.                 Cull();
  22.             }
  23.             Console.WriteLine("ANSWER {0}{1}", oddIsLight ? "-" : "", minLeft);
  24.         }
  25.  
  26.         static bool Triage()
  27.         {
  28.             int third = spheres / 3;
  29.             var first = Weigh(third, 1);
  30.             var second = Weigh(third, third + 1);
  31.             if (first == 0)
  32.             {
  33.                 minLeft = third * 2 + 1;
  34.                 maxLeft = third * 3;
  35.                 if (second > 0) return false;
  36.                 if (second < 0) return true;
  37.                 return CheckRemainder();
  38.             }
  39.             if (second == 0)
  40.             {
  41.                 maxLeft = third;
  42.                 return (first > 0) ? true : false;
  43.             }
  44.             minLeft = third + 1;
  45.             maxLeft = third * 2;
  46.             return (first > 0) ? false : true;
  47.         }
  48.  
  49.         static bool CheckRemainder()
  50.         {
  51.             var first = Weigh(1, spheres - 1);
  52.             if (spheres % 3 == 1)
  53.             {
  54.                 minLeft = spheres;
  55.                 return first > 0 ? false : true;
  56.             }
  57.             else
  58.             {
  59.                 var second = Weigh(1, spheres - 2);
  60.                 if (second == 0)
  61.                 {
  62.                     minLeft = spheres;
  63.                     return first > 0 ? false : true;
  64.                 }
  65.                 minLeft = maxLeft = spheres - 1;
  66.                 return first > 0 ? true : false;
  67.             }
  68.         }
  69.  
  70.         static void Cull()
  71.         {
  72.             var third = (maxLeft - minLeft + 1) / 3;
  73.             if (third == 0) third = 1;
  74.             var result = Weigh(third, minLeft);
  75.             int oddThird;
  76.             switch (result)
  77.             {
  78.                case -1:
  79.                     oddThird = oddIsLight ? 1 : 0;
  80.                     break;
  81.  
  82.                 case 1:
  83.                     oddThird = oddIsLight ? 0 : 1;
  84.                     break;
  85.  
  86.                 default:
  87.                     oddThird = 2;
  88.                     break;
  89.             }
  90.             minLeft = oddThird * third + minLeft;
  91.             if (oddThird < 2) maxLeft = minLeft + third - 1;
  92.         }
  93.  
  94.         static int Weigh(int num, int from)
  95.         {
  96.             Console.WriteLine("WEIGHT {0} {1}", num, String.Join(" ", Enumerable.Range(from, num * 2)));
  97.             var result = Console.ReadLine();
  98.             return result == "LEFT" ? -1 : result == "RIGHT" ? 1 : 0;
  99.         }
  100.     }
  101. }
  102.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cs(96,61): error CS1502: The best overloaded method match for `string.Join(string, string[])' has some invalid arguments
/usr/lib/mono/2.0/mscorlib.dll (Location of the symbol related to previous error)
prog.cs(96,61): error CS1503: Argument `#2' cannot convert `System.Collections.Generic.IEnumerable<int>' expression to type `string[]'
Compilation failed: 2 error(s), 0 warnings
stdout 
Standard output is empty
https://ideone.com/JKLIr
language:
C# (gmcs 5.20.1)
created:
14 years ago
visibility:
public

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