Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here
    int seq_len_count =0;
    for (int needle_pos = 0; needle_pos < k - 1; needle_pos++)
    {
        if((*(mem + needle_pos)) == !(*(mem + needle_pos + 1)))
        {
            seq_len_count++;
            if (seq_len_count == k - 1)// k-1 -> preponding to prevent segmentation fault or illegal mem access
            {
                return 1;
            }
        }
    }
    return 0;
}

int main() {
    int n, k, arr[100];
    scanf("%d %d", &n, &k);

    if (k > n)
    {
        k = n;
    }

    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    int res = is_alternating_pattern(arr, k);
    printf("%d", res);

    return 0;
}

Solving Approach