An afaik unnamed involution

Submit

Language is selected by the extension of the file. See the list of supported languages to know the extension of your language.

Problem

f is an involution on positive integers, i.e. f is a function that satisfies

f(f(x)) = x

for any positive integer x.

Please detect f and print the values of f(x) for the first 100 positive integers.

-- tails

Options

exec is denied

rejudge feature is enabled

now post-mortem time, all source codes will be revealed

Sample input:_

*NOTHING*

Sample output:

1 : 1
2 : 3
3 : 2
4 : 5
5 : 4
6 : 6
7 : 8
8 : 7
9 : 16
10 : 12
11 : 32
12 : 10
13 : 64
14 : 24
15 : 128
16 : 9
17 : 256
18 : 48
19 : 512
20 : 20
21 : 1024
22 : 96
23 : 2048
24 : 14
25 : 4096
26 : 192
27 : 8192
28 : 40
29 : 16384
30 : 384
31 : 32768
32 : 11
33 : 65536
34 : 768
35 : 131072
36 : 80
37 : 262144
38 : 1536
39 : 524288
40 : 28
41 : 1048576
42 : 3072
43 : 2097152
44 : 160
45 : 4194304
46 : 6144
47 : 8388608
48 : 18
49 : 16777216
50 : 12288
51 : 33554432
52 : 320
53 : 67108864
54 : 24576
55 : 134217728
56 : 56
57 : 268435456
58 : 49152
59 : 536870912
60 : 640
61 : 1073741824
62 : 98304
63 : 2147483648
64 : 13
65 : 4294967296
66 : 196608
67 : 8589934592
68 : 1280
69 : 17179869184
70 : 393216
71 : 34359738368
72 : 112
73 : 68719476736
74 : 786432
75 : 137438953472
76 : 2560
77 : 274877906944
78 : 1572864
79 : 549755813888
80 : 36
81 : 1099511627776
82 : 3145728
83 : 2199023255552
84 : 5120
85 : 4398046511104
86 : 6291456
87 : 8796093022208
88 : 224
89 : 17592186044416
90 : 12582912
91 : 35184372088832
92 : 10240
93 : 70368744177664
94 : 25165824
95 : 140737488355328
96 : 22
97 : 281474976710656
98 : 50331648
99 : 562949953421312
100 : 20480

Ranking

Ruby _

Rank	User	Size	Time	Date	Statistics
1	mitchs	56	0.0124	2016/01/28 00:45:56	0B / 24B / 29B
2	Histocrat	56	0.0119	2016/02/04 05:22:31	0B / 21B / 32B
3	mitchs (alt)	58	0.0124	2016/01/28 00:46:59	0B / 24B / 31B

Ruby2 _

Rank	User	Size	Time	Date	Statistics
1	mitchs	57	0.0682	2016/01/28 00:47:54	0B / 26B / 28B
2	Histocrat	57	0.0683	2016/02/04 05:24:44	0B / 23B / 31B
3	olg	59	0.1642	2016/02/04 10:30:00	0B / ?B / ?B
4	olf	59	0.1022	2016/02/04 10:32:45	0B / ?B / ?B
5	angel	62	0.0882	2016/01/21 16:14:07	0B / ?B / ?B
6	gmk	64	0.0646	2016/01/22 12:46:38	0B / 23B / 38B
7	shinh	69	0.0663	2016/01/25 20:39:26	0B / 32B / 32B

Perl _

Rank	User	Size	Time	Date	Statistics
1	llhuii	52	0.0161	2016/01/31 16:24:44	0B / 17B / 32B
2	tails	52	0.0251	2016/02/01 14:48:44	0B / 17B / 32B
3	teebee	53	0.0223	2016/01/28 08:38:03	0B / 20B / 30B
4	%20	85	0.0001	2016/01/22 20:03:42	0B / 39B / 43B

Python _

Rank	User	Size	Time	Date	Statistics
1	whatisgolf	59	0.0489	2016/01/21 23:36:51	0B / ?B / ?B
2	mitchs	59	0.0410	2016/01/22 00:47:34	0B / 31B / 27B
3	llhuii	59	0.0337	2016/01/31 15:32:09	0B / 31B / 28B
4	xsot	61	0.0937	2016/01/25 21:53:56	0B / 32B / 27B
5	xnor	61	0.1221	2016/01/28 07:32:29	0B / ?B / ?B
6	rolf	72	0.0335	2016/01/22 05:49:27	0B / 38B / 31B
7	mitchs (whatisgolf)	57	0.0359	2016/02/04 11:06:53	0B / 28B / 28B

Python3 _

Rank	User	Size	Time	Date	Statistics
1	mitchs	62	0.0606	2016/02/03 19:25:59	0B / 32B / 29B
2	llhuii	62	0.0581	2016/02/04 00:59:22	0B / 32B / 29B
3	xsot	64	0.0632	2016/02/03 18:56:40	0B / 33B / 30B

JavaScript _

Rank	User	Size	Time	Date	Statistics
1	...	84	0.0760	2016/01/28 09:28:42	0B / 48B / 34B
2	Jakzo	84	0.0180	2016/01/28 09:55:05	0B / 48B / 34B
3	teebee(...,Jakzo)	73	0.0289	2016/02/04 12:12:19	0B / 38B / 33B

PARI/GP _

Rank	User	Size	Time	Date	Statistics
1	mitchs	58	0.0248	2016/01/21 11:49:21	0B / 32B / 24B

C _

Rank	User	Size	Time	Date	Statistics
1	llhuii	70	0.0128	2016/01/31 15:32:54	0B / 34B / 34B
2	tails	71	0.0150	2016/01/30 22:26:23	0B / 35B / 34B

Haskell _

Rank	User	Size	Time	Date	Statistics
1	henkma	89	0.0177	2016/01/29 22:01:38	0B / 43B / 40B

ObjC _

Rank	User	Size	Time	Date	Statistics
1	llhuii	70	0.0001	2016/01/31 15:37:20	0B / 34B / 34B

AWK _

Rank	User	Size	Time	Date	Statistics
1	llhuii	70	0.0138	2016/01/30 20:01:36	0B / ?B / ?B

sed _

Rank	User	Size	Time	Date	Statistics
1	tails	178	0.3248	2016/01/23 13:45:12	0B / 52B / 98B
2	mitchs (tails)	174	0.2248	2016/02/05 03:25:39	0B / 64B / 83B

Bash (builtins) _

Rank	User	Size	Time	Date	Statistics
1	tails	83	0.0335	2016/02/01 10:37:13	0B / 32B / 44B
2	tails	65	0.0409	2016/02/04 14:06:19	0B / 22B / 36B

make _

Rank	User	Size	Time	Date	Statistics
1	tails	420	0.0879	2016/01/27 18:18:16	0B / 216B / 161B

dc _

Rank	User	Size	Time	Date	Statistics
1	tails	44	0.0130	2016/01/23 21:26:33	0B / 28B / 14B

xgawk _

Rank	User	Size	Time	Date	Statistics
1	llhuii	63	0.0145	2016/01/30 19:59:33	0B / ?B / ?B
2	teebee	64	0.0114	2016/01/30 16:52:09	0B / 36B / 26B
3	llhuii(teebee)	60	0.0151	2016/02/04 11:34:14	0B / ?B / ?B
4	teebee(llhuii)	61	0.0312	2016/02/04 11:26:30	0B / 29B / 30B

Brainfuck _

Rank	User	Size	Time	Date	Statistics
1	mitchs (cheat)	289	0.0487	2016/02/04 10:40:40	0B / 1B / 286B
2	mitchs	326	0.0381	2016/02/04 10:38:54	0B / 0B / 326B
3	mitchs (cheat)	277	0.0634	2016/02/06 09:38:58	0B / 1B / 274B
4	mitchs	310	0.0447	2016/02/07 12:04:05	0B / 0B / 310B

GolfScript _

Rank	User	Size	Time	Date	Statistics
1	tails	37	0.0340	2016/01/22 19:28:20	0B / 9B / 25B

gs2 _

Rank	User	Size	Time	Date	Statistics
1	mitchs	20	0.0988	2016/01/21 14:41:19	7B / 6B / 6B

Language Ranking_

Rank	Lang	User	Size	Score
1	gs2	mitchs	20	10000
2	GolfScript	tails	37	5405
3	dc	tails	44	4545
4	Perl	llhuii	52	3846
5	Ruby	mitchs	56	3571
6	Ruby2	mitchs	57	3508
7	Python	mitchs (whatisgolf)	57	3508
8	PARI/GP	mitchs	58	3448
9	xgawk	llhuii(teebee)	60	3333
10	Python3	mitchs	62	3225
11	Bash (builtins)	tails	65	3076
12	AWK	llhuii	70	2857
13	C	llhuii	70	2857
14	ObjC	llhuii	70	2857
15	JavaScript	teebee(...,Jakzo)	73	2739
16	Haskell	henkma	89	2247
17	sed	mitchs (tails)	174	1149
18	Brainfuck	mitchs (cheat)	277	722
19	make	tails	420	476

return to the top page