Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    int *p1 = mem;
    int expected_val = *p1;

    for(int i=0;i<k;i++){
        if(*p1 != expected_val)
            return 0;

        expected_val = (expected_val == 1)? 0 : 1;
        p1++;
    }
    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