Programmer's Learning Machine

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	English	Ukrainian	Actions
	Given an array of integers, return the number of 9's in the array.
	ArrayFront9
	Given an array of integers, return true if one of the first 4 elements in the array is a 9. The array length may be less than 4.
	NoTriples
	Given an array of integers, we'll say that a triple is a value appearing 3 times in a row in the array. Return true if the array does not contain any triples.
	Has271	Has271
	Given an array of integers, return true if it contains a 2, 7, 1 pattern -- a value, followed by the value plus 5, followed by the initial value minus 1. So, 2,7,1 is such a pattern because 7 is 5+2 and 1 is 2-1. 3,8,2 is also such a pattern.
	Additionally the 271 counts even if the "1" differs by 2 or less from the correct value.
	Golomb sequence
	The Golomb sequence is a non-decreasing integer sequence where a(n) is the number of times that n occurs in the sequence, with a(1) = 1.
	Since a(1)=1, it means that 1 occurs only once in the sequence, so a(2) must be different. Since the sequence is non-decreasing, a(2) must be greater than 1. Since a(2)>1, the digit 2 must appear more than one time in the sequence. So a(2)=2.

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English	Ukrainian
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type: Content of: <h1>

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src/lessons/welcome/array/has271/Has271.html:2

String age

3 years ago

Last updated

a year ago

Source string age

3 years ago

Translation file

l10n/missions/uk.po, string 444