ghoomfrog

/* Functions to extract the year, the month and the day of a date integer (like 20151126), without using strings.
 *
 * by Unlimiter
 */

#include <stdio.h>
#include <math.h>

// returns the number of digits in an integer
int get_int_len(int n) {

ghoomfrog

/* upisc (Unlimiter's Pair-based Integer String Compression)
 *   A method to compress strings of digit pairs into strings of predefined symbols.
 *   The symbol dictionary doesn't contain every possible combination of pairs, but pairs that can be reversed to produce other pairs.
 *   
 *   In the command line, the program takes 1 argument, the integer string you want compress. It must have an even length.
 *   If one of the pairs in the argument is not in the dictionary, the program reverses it then translates it, after that, it puts a dot after it to denote it has been reversed.
 * 
 * — Unlimiter
 */

ghoomfrog

#include<limits.h>
#include<stdio.h>
#include<math.h>

// arithmetical definition of "abs"
int abs(int i) {
  return pow((i*i), 0.5);
}

int f1(int num)