Detect Alternating Pattern

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here  
    int *end = mem + k - 1;  // Pointer to last element to check
    
    // Check each adjacent pair using pointer arithmetic
    for (; mem < end; ++mem) 
    {
        if (*mem == *(mem + 1)) 
        {
            return 0;  // Found two consecutive identical elements
        }
    }
    return 1;  // All adjacent pairs are different

}

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

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

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

    return 0;
}