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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7. 		// your code goes here
  8. 		RemoveKdigits("1432219",3);
  9. 	}
  10.  
  11. 	public static string RemoveKdigits(string num, int k) {
  12.         if(num.Length==k){return "0";}
  13.         int len = num.Length;
  14.         string sub = num.Substring(len-k);
  15.         Console.WriteLine(sub);
  16.         char min=num[0];
  17.         Console.WriteLine(min);
  18.         for(int i=1;i<len-k;i++){
  19.             if(num[i]<min){
  20.                 min=num[i];
  21.             }
  22.         }
  23.  
  24.         Console.WriteLine(min);
  25.         if(min!='0'){
  26.             return min.ToString()+sub;
  27.         }else{
  28.             return sub;
  29.         }
  30.     }
  31. }
Success #stdin #stdout 0.02s 15896KB
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https://ideone.com/KWBr16
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
public

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