title: Sum Binomial Coefficients 1
signature: sumBinomialCoefficients1(n) {
test_code: import 'dart:convert';
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  bool validateSolution(int actual, int expected){
      return actual.toString() == expected.toString();
  }
  
  String driver(n, int expected){
      try
      {
          if (validateSolution(PLACEHOLDER_FN_NAME(n), expected)){
              return "PASSED";
          }
          return "FAILED";
      }catch(exception_object){
          return exception_object.runtimeType.toString();
      }
  }
  
  int main() {
  
      print("TEST-0...${driver(
          48, 
          281474976710656)
      }");
  
      print("TEST-1...${driver(
          42, 
          4398046511104)
      }");
  
      print("TEST-2...${driver(
          15, 
          32768)
      }");
  
      print("TEST-3...${driver(
          23, 
          8388608)
      }");
  
      print("TEST-4...${driver(
          41, 
          2199023255552)
      }");
  
      print("TEST-5...${driver(
          46, 
          70368744177664)
      }");
  
      print("TEST-6...${driver(
          36, 
          68719476736)
      }");
  
      print("TEST-7...${driver(
          53, 
          9007199254740992)
      }");
  
      return 0;
  }
source_py: def sum_binomial_coefficients_1(n):
      return (1 << n)
source_cpp: int sum_binomial_coefficients_1(int n) {
    return ( 1 << n );
  }