title: Count Characters Position English Alphabets
signature: function count_characters_position_english_alphabets(str)
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("lLkhFeZGcb", 0)
      print(string.format("TEST-0...%s",result))
  
      result = driver("ABcED", 3)
      print(string.format("TEST-1...%s",result))
  
      result = driver("geeksforgeeks", 1)
      print(string.format("TEST-2...%s",result))
  
      result = driver("Alphabetical", 3)
      print(string.format("TEST-3...%s",result))
  
      result = driver("abababab", 2)
      print(string.format("TEST-4...%s",result))
  
      result = driver("bcdefgxyz", 0)
      print(string.format("TEST-5...%s",result))
  
      result = driver("cBzaqx L", 1)
      print(string.format("TEST-6...%s",result))
  
      result = driver(" bcd", 3)
      print(string.format("TEST-7...%s",result))
  
      result = driver("11", 0)
      print(string.format("TEST-8...%s",result))
  
      result = driver("MqqKY", 0)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
source_py: def count_characters_position_english_alphabets(str):
      result = 0
      for i in range(len(str)):
          if ((i == (ord(str[i]) - ord('a'))) or (i == (ord(str[i]) - ord('A')))):
              result += 1
      return result
source_cpp: int count_characters_position_english_alphabets(string str) {
    int result = 0;
    for ( int i = 0;
    i < str . size ( );
    i ++ ) if ( i == ( str [ i ] - 'a' ) || i == ( str [ i ] - 'A' ) ) result ++;
    return result;
  }