59. Scan Memory for Three Consecutive Increasing Values

#include <stdio.h>
int find_pattern(int *mem, int n) {
    for(int i=0;i<n-1;i++){
        if(*(mem + i + 1) == *(mem + i) + 1 && 
            *(mem + i + 2) == *(mem + i + 1) + 1){
            return 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;
}