Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    for (int i = 1; i < k; i++) {
                if (*(mem + i) == *(mem + i - 1)) {
                            return 0; // Not alternating
                                    }
                                        }
                                            return 1; // Alternating
    }


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;
}

Solving Approach