Änderungen von armstrong.rb

sixtyfive hat die Gist bearbeitet 1 month ago. Zu Änderung gehen

1 file changed, 5 insertions, 1 deletion

armstrong.rb

			@@ -94,6 +94,10 @@ class Integer
94	94		digits = self.to_s.chars.map(&:to_i)
95	95		self == digits.map{_1**digits.count}.inject(&:+)
96	96		end
	97	+
	98	+	def skippable?
	99	+	self.to_s.size > 31 && self.to_s.chars.uniq.size != 10
	100	+	end
97	101		end
98	102
99	103		def test
			@@ -104,4 +108,4 @@ def test
104	108		end
105	109		end
106	110
107		-	test
	111	+	(1..115132219018763992565095597973971522401).each{\|i\| next if i.skippable?; puts i if i.is_armstrong?}

sixtyfive hat die Gist bearbeitet 1 month ago. Zu Änderung gehen

1 file changed, 107 insertions

armstrong.rb(Datei erstellt)

		@@ -0,0 +1,107 @@
1	+	KNOWN_ARMSTRONG = [
2	+	1,
3	+	2,
4	+	3,
5	+	4,
6	+	5,
7	+	6,
8	+	7,
9	+	8,
10	+	9,
11	+	153,
12	+	370,
13	+	371,
14	+	407,
15	+	1634,
16	+	8208,
17	+	9474,
18	+	54748,
19	+	92727,
20	+	93084,
21	+	548834,
22	+	1741725,
23	+	4210818,
24	+	9800817,
25	+	9926315,
26	+	24678050,
27	+	24678051,
28	+	88593477,
29	+	146511208,
30	+	472335975,
31	+	534494836,
32	+	912985153,
33	+	4679307774,
34	+	32164049650,
35	+	32164049651,
36	+	40028394225,
37	+	42678290603,
38	+	44708635679,
39	+	49388550606,
40	+	82693916578,
41	+	94204591914,
42	+	28116440335967,
43	+	4338281769391370,
44	+	4338281769391371,
45	+	21897142587612075,
46	+	35641594208964132,
47	+	35875699062250035,
48	+	1517841543307505039,
49	+	3289582984443187032,
50	+	4498128791164624869,
51	+	4929273885928088826,
52	+	63105425988599693916,
53	+	128468643043731391252,
54	+	449177399146038697307,
55	+	21887696841122916288858,
56	+	27879694893054074471405,
57	+	27907865009977052567814,
58	+	28361281321319229463398,
59	+	35452590104031691935943,
60	+	174088005938065293023722,
61	+	188451485447897896036875,
62	+	239313664430041569350093,
63	+	1550475334214501539088894,
64	+	1553242162893771850669378,
65	+	3706907995955475988644380,
66	+	3706907995955475988644381,
67	+	4422095118095899619457938,
68	+	121204998563613372405438066,
69	+	121270696006801314328439376,
70	+	128851796696487777842012787,
71	+	174650464499531377631639254,
72	+	177265453171792792366489765,
73	+	14607640612971980372614873089,
74	+	19008174136254279995012734740,
75	+	19008174136254279995012734741,
76	+	23866716435523975980390369295,
77	+	1145037275765491025924292050346,
78	+	1927890457142960697580636236639,
79	+	2309092682616190307509695338915,
80	+	17333509997782249308725103962772,
81	+	186709961001538790100634132976990,
82	+	186709961001538790100634132976991,
83	+	1122763285329372541592822900204593,
84	+	12639369517103790328947807201478392,
85	+	12679937780272278566303885594196922,
86	+	1219167219625434121569735803609966019,
87	+	12815792078366059955099770545296129367,
88	+	115132219018763992565095597973971522400,
89	+	115132219018763992565095597973971522401
90	+	]
91	+
92	+	class Integer
93	+	def is_armstrong?
94	+	digits = self.to_s.chars.map(&:to_i)
95	+	self == digits.map{_1**digits.count}.inject(&:+)
96	+	end
97	+	end
98	+
99	+	def test
100	+	numbers = KNOWN_ARMSTRONG
101	+	KNOWN_ARMSTRONG.count.times{numbers << rand(KNOWN_ARMSTRONG.last)}
102	+	numbers.sort.each do \|x\|
103	+	puts "#{x} is #{'not ' unless x.is_armstrong?}an Armstrong number"
104	+	end
105	+	end
106	+
107	+	test

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