Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    while(k-1 > 0)
    {
        //printf("%d ",k);
        if(*mem == *(mem + 1)) // mem[i] = mem[i+1]
            return 0;
        
        mem++;
        k--;

    }
    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