Given a rational number n

``` n >= 0, with denominator strictly positive```  

- as a string (example: "2/3" in Ruby, Python, Clojure, JS, CS, Go) 
- or as two strings (example: "2" "3" in Haskell, Java, CSharp, C++, Swift) 
- or as a rational or decimal number (example: 3/4, 0.67 in R) 
- or two integers (Fortran)

decompose 
this number as a sum of rationals with numerators equal to one and without repetitions
(2/3 = 1/2 + 1/6 is correct but not 2/3 = 1/3 + 1/3, 1/3 is repeated).
    
The algorithm must be "greedy", so at each stage the new rational obtained in the decomposition must have a denominator as small as possible. 
In this manner the sum of a few fractions in the decomposition gives a rather good approximation of the rational to decompose.
    
2/3 = 1/3 + 1/3 doesn't fit because of the repetition but also because the first 1/3 has a denominator bigger than the one in 1/2 
in the decomposition 2/3 = 1/2 + 1/6.
    
### Example: 
(You can see other examples in "Sample Tests:")
```
decompose("21/23") or "21" "23" or 21/23 should return 

["1/2", "1/3", "1/13", "1/359", "1/644046"] in Ruby, Python, Clojure, JS, CS, Haskell, Go

"[1/2, 1/3, 1/13, 1/359, 1/644046]" in Java, CSharp, C++

"1/2,1/3,1/13,1/359,1/644046" in C, Swift, R
```  

### Notes
1) The decomposition of 21/23 as
```
21/23 = 1/2 + 1/3 + 1/13 + 1/598 + 1/897
```
is exact but don't fulfill our requirement because 598 is bigger than 359.
Same for 
```
21/23 = 1/2 + 1/3 + 1/23 + 1/46 + 1/69 (23 is bigger than 13)
or 
21/23 = 1/2 + 1/3 + 1/15 + 1/110 + 1/253 (15 is bigger than 13).
```
    
2) The rational given to decompose could be greater than one or equal to one, in which case the first "fraction" will be an integer 
(with an implicit denominator of 1). 

3) If the numerator parses to zero the function "decompose" returns [] (or "".

4) The number could also be a decimal which can be expressed as a rational. 

examples:

`0.6` in Ruby, Python, Clojure,JS, CS, Julia, Go
  
`"66" "100"` in Haskell, Java, CSharp, C++, C, Swift, Scala, Kotlin

`0.67` in R.

**Ref:**
http://en.wikipedia.org/wiki/Egyptian_fraction

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

def _disabled_input(*args, **kwargs):
    raise RuntimeError("input() is disabled in callable mode")
builtins.input = _disabled_input

ns = {"__name__": "__judge__"}  # prevent if __name__ == "__main__" blocks
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = "from fractions import Fraction as fr\nfrom math import ceil\ndef decompose(s):\n    s = str(fr(s)).split('/')\n    if len(s)==1 : return [s,[]][s[0]=='0'] \n    li = [[1, ceil(eval('int(s[1]) / int(s[0])'))]]\n    while 1:\n        n, d = li[-1]\n        s = str(fr(int(s[0]), int(s[1])) - fr(n, d)).split('/')\n        if len(s) == 1 : break\n        li.append([1, ceil(eval('int(s[1]) / int(s[0])'))])\n    return [str(fr(f'{i}/{j}')) for i,j in li] "
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'decompose'
if _fn_name:
    if "Solution" in ns:
        try:
            _obj = ns["Solution"]()
            if hasattr(_obj, _fn_name):
                _target = getattr(_obj, _fn_name)
        except Exception:
            _target = None
    if _target is None and _fn_name in ns and callable(ns[_fn_name]):
        _target = ns[_fn_name]
# Fallback: if there's exactly one user-defined function, use it
if _target is None:
    _cands = [v for k, v in ns.items() if callable(v) and getattr(v, "__module__", "") in ("__judge__", "__main__")]
    _user_funcs = [c for c in _cands if getattr(c, "__name__", "").startswith("_") is False]
    if len(_user_funcs) == 1:
        _target = _user_funcs[0]
if _target is None:
    raise RuntimeError(f"Could not resolve callable '{_fn_name}'")

_raw = sys.stdin.read().strip()
if _raw:
    _parsed = json.loads(_raw)
    if isinstance(_parsed, dict):
        _kwargs = _parsed.get("kwargs", {})
        _args = _parsed.get("args", [])
    else:
        _args, _kwargs = _parsed, {}
else:
    _args, _kwargs = [], {}
if not isinstance(_args, (list, tuple)):
    _args = [_args]
_res = _target(*_args, **_kwargs)
try:
    sys.stdout.write(repr(_res) + "\n")
except Exception:
    pass

```

Measured memory_bytes: 10053