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 i=2;
    int res;
    while(i<n){
        int j=i-1,k=j-1;
        if(((*(mem+i)) == ((*(mem+j))+1) ) && ((*(mem+j)) == ((*(mem+k))+1) )){
            return k;
        }
        i++;

    }
    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