title: Number Subsequences Form Ai Bj Ck
signature: function numberSubsequencesFormAiBjCk(s: string): number {
source_py: def number_subsequences_form_ai_bj_ck(s):
      aCount = 0
      bCount = 0
      cCount = 0
      for i in range(len(s)):
          if (s[i] == 'a'):
              aCount = (1 + (2 * aCount))
          elif (s[i] == 'b'):
              bCount = (aCount + (2 * bCount))
          elif (s[i] == 'c'):
              cCount = (bCount + (2 * cCount))
      return cCount
source_cpp: int number_subsequences_form_ai_bj_ck(string s) {
    int aCount = 0;
    int bCount = 0;
    int cCount = 0;
    for ( unsigned int i = 0;
    i < s . size ( );
    i ++ ) {
      if ( s [ i ] == 'a' ) aCount = ( 1 + 2 * aCount );
      else if ( s [ i ] == 'b' ) bCount = ( aCount + 2 * bCount );
      else if ( s [ i ] == 'c' ) cCount = ( bCount + 2 * cCount );
    }
    return cCount;
  }
question_info.test_list: [{"idx": 0, "outputs": 0, "inputs": {"s": ""}}, {"idx": 1, "outputs": 3, "inputs": {"s": "abbc"}}, {"idx": 2, "outputs": 7, "inputs": {"s": "abcabc"}}, {"idx": 3, "outputs": 1, "inputs": {"s": "agsdbkfdc "}}, {"idx": 4, "outputs": 0, "inputs": {"s": "ababab"}}, {"idx": 5, "outputs": 0, "inputs": {"s": "aaaaaaa"}}, {"idx": 6, "outputs": 111, "inputs": {"s": "aabaaabcc"}}, {"idx": 7, "outputs": 0, "inputs": {"s": "19"}}, {"idx": 8, "outputs": 0, "inputs": {"s": "1001100"}}, {"idx": 9, "outputs": 0, "inputs": {"s": "DtAnuQbU"}}]
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(s: string, expected:number): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(s),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver("", 0);
    console.log(`TEST-0...${result}`);
  
    result = driver("abbc", 3);
    console.log(`TEST-1...${result}`);
  
    result = driver("abcabc", 7);
    console.log(`TEST-2...${result}`);
  
    result = driver("agsdbkfdc ", 1);
    console.log(`TEST-3...${result}`);
  
    result = driver("ababab", 0);
    console.log(`TEST-4...${result}`);
  
    result = driver("aaaaaaa", 0);
    console.log(`TEST-5...${result}`);
  
    result = driver("aabaaabcc", 111);
    console.log(`TEST-6...${result}`);
  
    result = driver("19", 0);
    console.log(`TEST-7...${result}`);
  
    result = driver("1001100", 0);
    console.log(`TEST-8...${result}`);
  
    result = driver("DtAnuQbU", 0);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
question_info.extension: ts
question_info.entry_fn_name: numberSubsequencesFormAiBjCk
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