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 data=0;
    int idx;
    int con=0;
    for(int i=0;i<n;i++){
        data = *(mem);
        if((data+1)==*(mem+1)){ // execute when consecutive sequence is detected
            idx=i; // idx is mem index that pointer currently points to
            con++;
            if(con == 2) // equivalent as three consecutive ints
                return idx-1; // subtract idx by 1 to get starting index
        }
        else{
            con = 0;
        }
        mem++;
    }
    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