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 dem=0;
    while(n>2){
        int a=*mem;
        int b=*(mem+1);
        int c=*(mem+2);
        if(b==a+1 &&c==b+1){
            return dem;
        }
        *mem++;
        dem++;
        n--;
    }
    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