60. Detect Alternating Pattern

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here
    //Assign a walking poiner 
    int *walk=mem;
    int value_expect = *walk; //Say to store 1st value ( 0 or 1 and invert later in loop)

    for(int i=0;i<k;i++)
    {
        if(*walk!=value_expect)
            return 0;
        value_expect = !value_expect; //Invert the value expect 0->1 or 1->0
        walk++; //increment walk pointer 
    }
    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;
}