PAT(Advanced Level) Practice(with python)——1118 Birds in Forest
codeN=int(input())birds=[[]foriinrange(10001)]vis=[0foriinrange(10001)]max_bird=0tree_id=0#染色问题,并查集,如果没染色,深度搜索并染色defdfs(cur):vis[cur]=tree_idforbinbirds[cur]:ifvis[b]==0:dfs(b)foriinrange(N):a,*b=map(