59. Scan Memory for Three Consecutive Increasing Values

#include <stdio.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here
    int *start_index = mem;
    int *end = (mem + n - 2);
    for(;mem < end; mem++){
        if(((*(mem + 1)) == (*mem) + 1) && ((*(mem + 2)) == ((*mem) + 2))){
            return (int)(mem - start_index);
        }
    }
    return -1;
}

int main() {
    int n, arr[100];
    scanf("%d", &n);

    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    int res = find_pattern(arr, n);
    printf("%d", res);

    return 0;
}