title: Nth Non Fibonacci Number
signature: function nth_non_fibonacci_number(n)
test_code: 
  
  -- SOLUTION CODE
  -- ============================================
  PLACEHOLDER_CODE_BODY
  
  -- TESTING CODE 
  -- ============================================
  function isCorrect(actual, expected)
      if type(expected) ~= type(actual) then
          return false
      end
      
      if type(expected) == 'table' then
          for k,v_expected in pairs(expected) do
              
              if actual[k] == nil then
                  return false
              end
              local v_actual = actual[k]
              if not isCorrect(v_actual, v_expected) then
                  return false
              end
              actual[k]=nil
          end
      
          if next(actual) then 
              return false
          end
          return true
      else
          return actual == expected
      end
  end
  
  function validateSolution(actual, expected)
      return isCorrect(actual,expected)
  end
  
  function driver(n, expected)
      local exec_result;
      local status, error_msg = pcall(function () 
          exec_result=PLACEHOLDER_FN_NAME(n) 
      end)
      if status then
          if validateSolution(exec_result,expected) then
              return "PASSED"
          end
          return "FAILED"
      else
          return string.format("ERROR=%s",string.gsub(error_msg,".*:[%d]+: ",""))
      end
  end
      
  function main()
      result = driver(76, 85)
      print(string.format("TEST-0...%s",result))
  
      result = driver(91, 101)
      print(string.format("TEST-1...%s",result))
  
      result = driver(62, 71)
      print(string.format("TEST-2...%s",result))
  
      result = driver(65, 74)
      print(string.format("TEST-3...%s",result))
  
      result = driver(83, 93)
      print(string.format("TEST-4...%s",result))
  
      result = driver(57, 66)
      print(string.format("TEST-5...%s",result))
  
      result = driver(76, 85)
      print(string.format("TEST-6...%s",result))
  
      result = driver(6, 11)
      print(string.format("TEST-7...%s",result))
  
      result = driver(2, 6)
      print(string.format("TEST-8...%s",result))
  
      result = driver(86, 96)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
source_py: def nth_non_fibonacci_number(n):
      prevPrev = 1
      prev = 2
      curr = 3
      while (n > 0):
          prevPrev = prev
          prev = curr
          curr = (prevPrev + prev)
          n = (n - ((curr - prev) - 1))
      n = (n + ((curr - prev) - 1))
      return (prev + n)
source_cpp: int nth_non_fibonacci_number(int n) {
    int prevPrev = 1, prev = 2, curr = 3;
    while ( n > 0 ) {
      prevPrev = prev;
      prev = curr;
      curr = prevPrev + prev;
      n = n - ( curr - prev - 1 );
    }
    n = n + ( curr - prev - 1 );
    return prev + n;
  }