59. Scan Memory for Three Consecutive Increasing Values

#include <stdio.h>
#include <stdint.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here
    int8_t count = 1;
    for (size_t i = 1; i < n; i++) {
        if (((*(mem+i))-1) == *(mem+i-1)) {
            count++;
        }
        else if (count > 1) {
            count--;
        }
        if (count >= 3) return i-2;
    }
    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;
}