{ "data": { "question": { "questionId": "1689", "questionFrontendId": "1566", "boundTopicId": null, "title": "Detect Pattern of Length M Repeated K or More Times", "titleSlug": "detect-pattern-of-length-m-repeated-k-or-more-times", "content": "
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.
\n\nReturn true
if there exists a pattern of length m
that is repeated k
or more times, otherwise return false
.
\n
Example 1:
\n\n\nInput: arr = [1,2,4,4,4,4], m = 1, k = 3\nOutput: true\nExplanation: The pattern (4) of length 1 is repeated 4 consecutive times. Notice that pattern can be repeated k or more times but not less.\n\n\n
Example 2:
\n\n\nInput: arr = [1,2,1,2,1,1,1,3], m = 2, k = 2\nOutput: true\nExplanation: The pattern (1,2) of length 2 is repeated 2 consecutive times. Another valid pattern (2,1) is also repeated 2 times.\n\n\n
Example 3:
\n\n\nInput: arr = [1,2,1,2,1,3], m = 2, k = 3\nOutput: false\nExplanation: The 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.\n\n\n
\n
Constraints:
\n\n2 <= arr.length <= 100
1 <= arr[i] <= 100
1 <= m <= 100
2 <= k <= 100
Compiled with clang 11
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Most standard library headers are already included automatically for your convenience.
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