Library Book Groups

You are tasked with managing a library system where books can belong to multiple genres. Each genre is identified by a distinct integer. Books can be grouped into connected components, meaning if two genres are connected, any book from either genre can be classified under the combined genres. Given a list of connections between genres, you need to output the size of the largest connected component of genres in terms of the number of unique genres. Input format: - The first line contains an integer n (1 ≤ n ≤ 1000), the number of genres. - The second line contains an integer m (0 ≤ m ≤ 10000), the number of connections. - The following m lines contain two integers a and b (1 ≤ a, b ≤ n), representing a connection between genres a and b. Output format: - Print a single integer, the size of the largest connected component. Example: Input: 5 4 1 2 2 3 4 5 3 4 Output: 4