fork download
copy 
  1. countdown(1) :- write(1), !.
  2. countdown(N) :-
  3. write(N), nl,
  4. M is N - 1,
  5. countdown(M).
Success #stdin #stdout 0.01s 68352KB
comments (?)
stdin
copy 
countdown(20).
stdout
copy 
GNU Prolog 1.3.1
By Daniel Diaz
Copyright (C) 1999-2009 Daniel Diaz
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

yes
https://ideone.com/OCjE6
language:
Prolog (gprolog 1.4.5)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!