title: N Th Number Whose Sum Of Digits Is Ten 2
signature: class Solution {
  
      public Integer nThNumberWhoseSumOfDigitsIsTen2(Integer n) {
test_code: import static java.util.Map.entry;  
  import java.util.*;
  import java.lang.*;
  // TESTING CODE 
  // ============================================
  class QuestionEvaluator {
      public static String validateSolution(Integer n, Integer expected){
          try{
              Driver driver = new Driver();
              if (driver.run(n,expected)){
                  return "PASSED";
              }
              return "FAILED";
              
          } catch (Exception exception_obj){
              return exception_obj.getClass().getSimpleName();
          }
  
      }
      public static void main(String[] args) {
          String result;
          result = validateSolution(68, 631);
          System.out.println(String.format("%s%s","TEST-0...",result));    
      
          result = validateSolution(70, 649);
          System.out.println(String.format("%s%s","TEST-1...",result));    
      
          result = validateSolution(69, 640);
          System.out.println(String.format("%s%s","TEST-2...",result));    
      
          result = validateSolution(93, 856);
          System.out.println(String.format("%s%s","TEST-3...",result));    
      
          result = validateSolution(99, 910);
          System.out.println(String.format("%s%s","TEST-4...",result));    
      
          result = validateSolution(44, 415);
          System.out.println(String.format("%s%s","TEST-5...",result));    
      
          result = validateSolution(91, 838);
          System.out.println(String.format("%s%s","TEST-6...",result));    
      
          result = validateSolution(8, 82);
          System.out.println(String.format("%s%s","TEST-7...",result));    
      
          result = validateSolution(83, 766);
          System.out.println(String.format("%s%s","TEST-8...",result));    
      
          result = validateSolution(51, 478);
          System.out.println(String.format("%s%s","TEST-9...",result));    
      
      }
  }
  
  class Driver{
      public boolean run(Integer n, Integer expected){
  
          PLACEHOLDER_CLS_NAME sol = new PLACEHOLDER_CLS_NAME();
          return validateSolution(sol.PLACEHOLDER_FN_NAME(n),expected);
      }
      
      public boolean validateSolution(Integer actual, Integer expected){
          return actual.equals(expected);
      }
  }
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
source_py: def n_th_number_whose_sum_of_digits_is_ten_2(n):
      nthElement = (19 + ((n - 1) * 9))
      outliersCount = (int(math.log10(nthElement)) - 1)
      nthElement += (9 * outliersCount)
      return nthElement
source_cpp: int n_th_number_whose_sum_of_digits_is_ten_2(int n) {
    int nthElement = 19 + ( n - 1 ) * 9;
    int outliersCount = ( int ) log10 ( nthElement ) - 1;
    nthElement += 9 * outliersCount;
    return nthElement;
  }