CodingBat/Java/Warmup-2/NoTriples.java at master · pauldpearson/CodingBat · GitHub

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Given an array of ints, 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.
noTriples([1, 1, 2, 2, 1]) → true
noTriples([1, 1, 2, 2, 2, 1]) → false
noTriples([1, 1, 1, 2, 2, 2, 1]) → false
public class NoTriples {