title: Program Binary Decimal Conversion 1
signature: function programBinaryDecimalConversion1(n: string): number {
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(n: string, expected:number): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(n),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver("uEmIAgF", 0);
    console.log(`TEST-0...${result}`);
  
    result = driver("753310137", 20);
    console.log(`TEST-1...${result}`);
  
    result = driver("010011010", 154);
    console.log(`TEST-2...${result}`);
  
    result = driver("kNi", 0);
    console.log(`TEST-3...${result}`);
  
    result = driver("04562016903312", 130);
    console.log(`TEST-4...${result}`);
  
    result = driver("000111101", 61);
    console.log(`TEST-5...${result}`);
  
    result = driver("bk", 0);
    console.log(`TEST-6...${result}`);
  
    result = driver("9", 0);
    console.log(`TEST-7...${result}`);
  
    result = driver("1", 1);
    console.log(`TEST-8...${result}`);
  
    result = driver("XxT nXLlk", 0);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
source_py: def program_binary_decimal_conversion_1(n):
      num = n
      dec_value = 0
      base1 = 1
      len1 = len(num)
      for i in range((len1 - 1), (- 1), (- 1)):
          if (num[i] == '1'):
              dec_value += base1
          base1 = (base1 * 2)
      return dec_value
source_cpp: int program_binary_decimal_conversion_1(string n) {
    string num = n;
    int dec_value = 0;
    int base = 1;
    int len = num . length ( );
    for ( int i = len - 1;
    i >= 0;
    i -- ) {
      if ( num [ i ] == '1' ) dec_value += base;
      base = base * 2;
    }
    return dec_value;
  }