Scan Memory for Three Consecutive Increasing Values

Code

#include <stdio.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here
    int index = 0;
    int prev = *mem;
    mem++;
    int count =1;
    int id = 0;
    for(int i=0; i<n; ++i)
    {
       // printf("%d",index);
        if(count == 3)
        {
            break;
        }
        else if(*mem != (prev+1))
        {
            if(id)
            {
                index += 2;
            }
            else
            {
                index++;
            }
            id = 0;
            count =1;
        }
        else
        {
            id++;
            count++;
        }
        prev = *mem;
        mem++;
    }
    if(count == 3)
    {
        return index;
    }
    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;
}

Solving Approach