Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here
    int *pCurrentVal = mem;
    int expectedVal = *pCurrentVal;
    for (int i = 0; i < k; i++)
    {
        if (*pCurrentVal == expectedVal)
        {
            expectedVal ^= (1 << 0);
            pCurrentVal++;
        }
        else
        {
            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