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 *p = mem;  // pointer walking

    for (int i = 0; i <= n - 3; i++) {

        int *a = p + i;     // first element
        int *b = p + i + 1; // second element
        int *c = p + i + 2; // third element

        if ((*a + 1 == *b) && (*b + 1 == *c)) 
        {
            return i; // starting index of pattern
        }
        }
    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