Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here
    int ret = 1;
    int *cur = mem;
    int *next = mem + 1;
    for(int i = 0; i < (k - 1); i++) {
        if (*cur == *next) {
            ret = 0;
            break;
        }
        cur++;
        next++;
    }
    return ret;
}

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