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