title: Ways Remove One Element Binary String Xor Becomes Zero
signature: function ways_remove_one_element_binary_string_xor_becomes_zero(str)
source_py: def ways_remove_one_element_binary_string_xor_becomes_zero(str):
      one_count = 0
      zero_count = 0
      n = len(str)
      for i in range(0, n, 1):
          if (str[i] == '1'):
              one_count += 1
          else:
              zero_count += 1
      if ((one_count % 2) == 0):
          return zero_count
      return one_count
source_cpp: int ways_remove_one_element_binary_string_xor_becomes_zero(string str) {
    int one_count = 0, zero_count = 0;
    int n = str . length ( );
    for ( int i = 0;
    i < n;
    i ++ ) if ( str [ i ] == '1' ) one_count ++;
    else zero_count ++;
    if ( one_count % 2 == 0 ) return zero_count;
    return one_count;
  }
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(str, expected)
      local exec_result;
      local status, error_msg = pcall(function () 
          exec_result=PLACEHOLDER_FN_NAME(str) 
      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("KfcTJNP", 7)
      print(string.format("TEST-0...%s",result))
  
      result = driver("05312505872", 1)
      print(string.format("TEST-1...%s",result))
  
      result = driver("100111", 2)
      print(string.format("TEST-2...%s",result))
  
      result = driver("tDEEhKxrQ", 9)
      print(string.format("TEST-3...%s",result))
  
      result = driver("50824233019", 1)
      print(string.format("TEST-4...%s",result))
  
      result = driver("10001110010", 5)
      print(string.format("TEST-5...%s",result))
  
      result = driver("T SEZaNm MYQ", 12)
      print(string.format("TEST-6...%s",result))
  
      result = driver("838415739", 1)
      print(string.format("TEST-7...%s",result))
  
      result = driver("01110100", 4)
      print(string.format("TEST-8...%s",result))
  
      result = driver("WYQiAey H", 9)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
question_info.entry_cls_name: Solution
question_info.test_list: [{"idx": 0, "outputs": 7, "inputs": {"str": "KfcTJNP"}}, {"idx": 1, "outputs": 1, "inputs": {"str": "05312505872"}}, {"idx": 2, "outputs": 2, "inputs": {"str": "100111"}}, {"idx": 3, "outputs": 9, "inputs": {"str": "tDEEhKxrQ"}}, {"idx": 4, "outputs": 1, "inputs": {"str": "50824233019"}}, {"idx": 5, "outputs": 5, "inputs": {"str": "10001110010"}}, {"idx": 6, "outputs": 12, "inputs": {"str": "T SEZaNm MYQ"}}, {"idx": 7, "outputs": 1, "inputs": {"str": "838415739"}}, {"idx": 8, "outputs": 4, "inputs": {"str": "01110100"}}, {"idx": 9, "outputs": 9, "inputs": {"str": "WYQiAey H"}}]
question_info.extension: lua
question_info.entry_fn_name: ways_remove_one_element_binary_string_xor_becomes_zero
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: lua __FILENAME__