Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *arr, int k) {
    for(int i=0; i<k -1; i++) {
        if(!((arr[i] == 1 && arr[i+1] ==0) ||
         (arr[i] == 0 && arr[i+1] ==1 ))){
             return 0;
        }
}
return 1;
}

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