title: Ways Remove One Element Binary String Xor Becomes Zero
signature: waysRemoveOneElementBinaryStringXorBecomesZero :: String -> Integer
  waysRemoveOneElementBinaryStringXorBecomesZero str = 
test_code: import Text.Printf
  import Control.Exception (catch, SomeException)
  import Data.Typeable
  import qualified Data.List as List
  import qualified Data.Map as Map
  import qualified Data.Set as Set
  
  -- SOLUTION CODE
  -- ============================================
  
  PLACEHOLDER_CODE_BODY
  
  -- TESTING CODE 
  -- ============================================
  validateSolution :: Integer -> Integer -> Bool
  validateSolution actual expected = do
      actual == expected
  
  
  driver :: String -> Integer -> String
  driver str expected = do
      if (validateSolution (PLACEHOLDER_FN_NAME str) expected)
          then "PASSED"
      else "FAILED"
  
  main = do
      printf "TEST-0...%s\n" (driver ("KfcTJNP") (7) )
  
      printf "TEST-1...%s\n" (driver ("05312505872") (1) )
  
      printf "TEST-2...%s\n" (driver ("100111") (2) )
  
      printf "TEST-3...%s\n" (driver ("tDEEhKxrQ") (9) )
  
      printf "TEST-4...%s\n" (driver ("50824233019") (1) )
  
      printf "TEST-5...%s\n" (driver ("10001110010") (5) )
  
      printf "TEST-6...%s\n" (driver ("T SEZaNm MYQ") (12) )
  
      printf "TEST-7...%s\n" (driver ("838415739") (1) )
  
      printf "TEST-8...%s\n" (driver ("01110100") (4) )
  
      printf "TEST-9...%s\n" (driver ("WYQiAey H") (9) )
  
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;
  }