How to Solve Detect Pattern of Length M Repeated K or More Times Problem
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Detect Pattern of Length M Repeated K or More Times
Given an array of positive integers arr, find a pattern of length m that is repeated k or more times. A pattern is a subarray (consecutive sub-sequence) that consists of one or more values, repeated m...
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Problem Statement
Given an array of positive integers arr, find a pattern of length m that is repeated k or more times. A pattern is a subarray (consecutive sub-sequence) that consists of one or more values, repeated multiple times consecutively without overlapping. A pattern is defined by its length and the number of repetitions. Return true if there exists a pattern of length m that is repeated k or more times, otherwise return false.
Detect Pattern of Length M Repeated K or More Times
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Examples
arr = [1,2,4,4,4,4], m = 1, k = 3trueThe pattern (4) of length 1 is repeated 4 consecutive times. Notice that pattern can be repeated k or more times but not less.
arr = [1,2,1,2,1,1,1,3], m = 2, k = 2trueThe pattern (1,2) of length 2 is repeated 2 consecutive times. Another valid pattern (2,1) is also repeated 2 times.
arr = [1,2,1,2,1,3], m = 2, k = 3falseThe pattern (1,2) is of length 2 but is repeated only 2 times. There is no pattern of length 2 that is repeated 3 or more times.
Constraints
2 <= arr.length <= 1001 <= arr[i] <= 1001 <= m <= 1002 <= k <= 100How Interview Coder Helps with Leetcode Problems
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