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 i = 0;
    while(i != n)
    {
        if((*(mem + i) - *(mem + i + 1) == -1) && (*(mem + i + 1) - *(mem + i + 2) == -1))
        {
            return i;
        }
        i++;
    }

    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;
}