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 strt = 0;
    for(int i = 1;i<n;i++){
        if(*(mem+i)-*(mem+strt) == (i-strt)){
            if((i-strt) == 2){
                return strt;
            }
        }else{
            strt = 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;
}