title: Ways Remove One Element Binary String Xor Becomes Zero
signature: function waysRemoveOneElementBinaryStringXorBecomesZero(str: string): number {
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_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.entry_cls_name: Solution
question_info.test_code: 
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function convertToString(value: any): string{
      return JSON.stringify(value, function (key, val) {
          if (val instanceof Set) {
              return Array.from(val);
          } return val;});
  }
  
  function validateSolution(actual: number, expected: number): boolean {
      return convertToString(actual) === convertToString(expected);
  }
  
  function driver(str: string, expected:number): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(str),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver("KfcTJNP", 7);
    console.log(`TEST-0...${result}`);
  
    result = driver("05312505872", 1);
    console.log(`TEST-1...${result}`);
  
    result = driver("100111", 2);
    console.log(`TEST-2...${result}`);
  
    result = driver("tDEEhKxrQ", 9);
    console.log(`TEST-3...${result}`);
  
    result = driver("50824233019", 1);
    console.log(`TEST-4...${result}`);
  
    result = driver("10001110010", 5);
    console.log(`TEST-5...${result}`);
  
    result = driver("T SEZaNm MYQ", 12);
    console.log(`TEST-6...${result}`);
  
    result = driver("838415739", 1);
    console.log(`TEST-7...${result}`);
  
    result = driver("01110100", 4);
    console.log(`TEST-8...${result}`);
  
    result = driver("WYQiAey H", 9);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
question_info.extension: ts
question_info.entry_fn_name: waysRemoveOneElementBinaryStringXorBecomesZero
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: tsc --target es2020 --lib es5,dom,es2015,es2020 __FILENAME__
question_info.commands: node __FILENAME__.js