title: Square Pyramidal Number Sum Squares
signature: function square_pyramidal_number_sum_squares(s)
source_py: def square_pyramidal_number_sum_squares(s):
      _sum = 0
      n = 1
      while (_sum < s):
          _sum += (n * n)
          n += 1
      n -= 1
      if (_sum == s):
          return n
      return (- 1)
source_cpp: int square_pyramidal_number_sum_squares(int s) {
    int sum = 0;
    for ( int n = 1;
    sum < s;
    n ++ ) {
      sum += n * n;
      if ( sum == s ) return n;
    }
    return - 1;
  }
question_info.entry_fn_name: square_pyramidal_number_sum_squares
question_info.entry_cls_name: Solution
question_info.test_case_ids: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
question_info.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(s, expected)
      local exec_result;
      local status, error_msg = pcall(function () 
          exec_result=PLACEHOLDER_FN_NAME(s) 
      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(1, 1)
      print(string.format("TEST-0...%s",result))
  
      result = driver(5, 2)
      print(string.format("TEST-1...%s",result))
  
      result = driver(14, 3)
      print(string.format("TEST-2...%s",result))
  
      result = driver(140, 7)
      print(string.format("TEST-3...%s",result))
  
      result = driver(204, 8)
      print(string.format("TEST-4...%s",result))
  
      result = driver(3, -1)
      print(string.format("TEST-5...%s",result))
  
      result = driver(506, 11)
      print(string.format("TEST-6...%s",result))
  
      result = driver(42, -1)
      print(string.format("TEST-7...%s",result))
  
      result = driver(4, -1)
      print(string.format("TEST-8...%s",result))
  
      result = driver(87, -1)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
question_info.test_list: [{"idx": 0, "outputs": 1, "inputs": {"s": 1}}, {"idx": 1, "outputs": 2, "inputs": {"s": 5}}, {"idx": 2, "outputs": 3, "inputs": {"s": 14}}, {"idx": 3, "outputs": 7, "inputs": {"s": 140}}, {"idx": 4, "outputs": 8, "inputs": {"s": 204}}, {"idx": 5, "outputs": -1, "inputs": {"s": 3}}, {"idx": 6, "outputs": 11, "inputs": {"s": 506}}, {"idx": 7, "outputs": -1, "inputs": {"s": 42}}, {"idx": 8, "outputs": -1, "inputs": {"s": 4}}, {"idx": 9, "outputs": -1, "inputs": {"s": 87}}]