Double the Last Number

[H2O]

Most of the time, Haskell, but pretty much everything will do


GHCi:

> 2^163

11692013098647223345629478661730264157247460343808

tclsh:

% expr {2**163}

11692013098647223345629478661730264157247460343808

bc:

2^163

11692013098647223345629478661730264157247460343808

C:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>

int main(int argc, char **argv){
  if(argc!=2){
    fprintf(stderr, "%s int\n", argv[0]);
    return EXIT_FAILURE;}
  unsigned long int e = strtoul(argv[1], NULL, 10);

  mpz_t r;
  mpz_init(r);
  mpz_ui_pow_ui(r,2ul,e);
  gmp_printf("%Zd\n",r);

  return EXIT_SUCCESS;}

./prog 163

11692013098647223345629478661730264157247460343808