Scan Memory for Three Consecutive Increasing Values

Code

#include <stdio.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here

    if(n<3)
        return -1;
    
    int *p = mem;
    int index = 0; 

    while(p<= mem + n -3)
    {
        if(*(p+1) == *p + 1 && *(p+2) == *(p+1)+1){
            return index;
        } 
        p++;
        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