title: Sum Matrix Element Absolute Difference Row Column Numbers
signature: function sum_matrix_element_absolute_difference_row_column_numbers(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(60, 71980)
      print(string.format("TEST-0...%s",result))
  
      result = driver(44, 28380)
      print(string.format("TEST-1...%s",result))
  
      result = driver(72, 124392)
      print(string.format("TEST-2...%s",result))
  
      result = driver(90, 242970)
      print(string.format("TEST-3...%s",result))
  
      result = driver(99, 323400)
      print(string.format("TEST-4...%s",result))
  
      result = driver(45, 30360)
      print(string.format("TEST-5...%s",result))
  
      result = driver(27, 6552)
      print(string.format("TEST-6...%s",result))
  
      result = driver(11, 440)
      print(string.format("TEST-7...%s",result))
  
      result = driver(65, 91520)
      print(string.format("TEST-8...%s",result))
  
      result = driver(52, 46852)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
source_py: def sum_matrix_element_absolute_difference_row_column_numbers(n):
      arr = [[0 for x in range(n)] for y in range(n)]
      for i in range(n):
          for j in range(n):
              arr[i][j] = abs((i - j))
      sum = 0
      for i in range(n):
          for j in range(n):
              sum += arr[i][j]
      return sum
source_cpp: int sum_matrix_element_absolute_difference_row_column_numbers(int n) {
    int arr [ n ] [ n ];
    for ( int i = 0;
    i < n;
    i ++ ) for ( int j = 0;
    j < n;
    j ++ ) arr [ i ] [ j ] = abs ( i - j );
    int sum = 0;
    for ( int i = 0;
    i < n;
    i ++ ) for ( int j = 0;
    j < n;
    j ++ ) sum += arr [ i ] [ j ];
    return sum;
  }