Leetcode 1566

1566. Detect Pattern of Length M Repeated K or More Times The idea of this can be show by this image

func containsPattern(arr []int, m int, k int) bool {
    counter := 0

    for i := 0; i < len(arr) - m; i++ {
        if arr[i] != arr[i+m] {
            counter = 0
        } else {
            counter++
        }

        if counter == (k-1)*m {
            return true
        }
    }

    return false
}