60. Detect Alternating Pattern

#include <stdio.h>

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

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;
}