title: Program Binary Decimal Conversion 1
signature: function program_binary_decimal_conversion_1(n)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(n, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(n), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver("uEmIAgF", 0);
      @printf("TEST-0...%s\n",result);
      
      result = driver("753310137", 20);
      @printf("TEST-1...%s\n",result);
      
      result = driver("010011010", 154);
      @printf("TEST-2...%s\n",result);
      
      result = driver("kNi", 0);
      @printf("TEST-3...%s\n",result);
      
      result = driver("04562016903312", 130);
      @printf("TEST-4...%s\n",result);
      
      result = driver("000111101", 61);
      @printf("TEST-5...%s\n",result);
      
      result = driver("bk", 0);
      @printf("TEST-6...%s\n",result);
      
      result = driver("9", 0);
      @printf("TEST-7...%s\n",result);
      
      result = driver("1", 1);
      @printf("TEST-8...%s\n",result);
      
      result = driver("XxT nXLlk", 0);
      @printf("TEST-9...%s\n",result);
      
  end
  
  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;
  }