title: Sum Binomial Coefficients 1
signature: sum_binomial_coefficients_1 <- function(n) {
test_code: 
  
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  validate_solution <- function(actual, expected) {
      toString(actual)==toString(expected)
  }
  
  driver <- function(n, expected){
      if (validate_solution(PLACEHOLDER_FN_NAME(n), expected)){
          "PASSED"
      } else{
          "FAILED"
      }
  }
  
  main <- function() {
      cat(sprintf("TEST-0...%s\n",driver(
          48L, 
          281474976710656L
      )))
  
      cat(sprintf("TEST-1...%s\n",driver(
          42L, 
          4398046511104L
      )))
  
      cat(sprintf("TEST-2...%s\n",driver(
          15L, 
          32768L
      )))
  
      cat(sprintf("TEST-3...%s\n",driver(
          23L, 
          8388608L
      )))
  
      cat(sprintf("TEST-4...%s\n",driver(
          41L, 
          2199023255552L
      )))
  
      cat(sprintf("TEST-5...%s\n",driver(
          46L, 
          70368744177664L
      )))
  
      cat(sprintf("TEST-6...%s\n",driver(
          36L, 
          68719476736L
      )))
  
      cat(sprintf("TEST-7...%s\n",driver(
          53L, 
          9007199254740992L
      )))
  
  }
  
  main()
source_py: def sum_binomial_coefficients_1(n):
      return (1 << n)
source_cpp: int sum_binomial_coefficients_1(int n) {
    return ( 1 << n );
  }