title: Sum Binomial Coefficients 1
signature: def sumBinomialCoefficients1(n: Int) = {
test_code: import scala.collection.mutable.HashMap
  import scala.collection.immutable.HashSet
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  
  // TESTING CODE 
  // ============================================
  def validateSolution(actual: Long , expected: Long): Boolean = {
      actual.toString == expected.toString
  }
  
  def driver(n: Int, expected: Long): String = {
      try {
          if (validateSolution(PLACEHOLDER_FN_NAME(n),expected)) {
              "PASSED"
          } else{
              "FAILED"
          }
      }catch{
          case e: Exception => {e.getClass.getName}
      }
  
  }
  object QuestionEvaluator extends App {
  
      println(s"TEST-0...${driver(
        48, 
        281474976710656L    
      )}")   
  
  
      println(s"TEST-1...${driver(
        42, 
        4398046511104L    
      )}")   
  
  
      println(s"TEST-2...${driver(
        15, 
        32768L    
      )}")   
  
  
      println(s"TEST-3...${driver(
        23, 
        8388608L    
      )}")   
  
  
      println(s"TEST-4...${driver(
        41, 
        2199023255552L    
      )}")   
  
  
      println(s"TEST-5...${driver(
        46, 
        70368744177664L    
      )}")   
  
  
      println(s"TEST-6...${driver(
        36, 
        68719476736L    
      )}")   
  
  
      println(s"TEST-7...${driver(
        53, 
        9007199254740992L    
      )}")   
  
  }
  
source_py: def sum_binomial_coefficients_1(n):
      return (1 << n)
source_cpp: int sum_binomial_coefficients_1(int n) {
    return ( 1 << n );
  }