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=mem;
    
    int index=0;
    while((start + 2) < (mem+n))
    {
        if( ( (*start)+1   ==  *(start+1))   &&
            ( *(start+1)+1 ==  *(start+2))   )
            {
            return index;
            }

        index++;
        start++;
    }
    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;
}