code
N int(input())birds [[] for i in range(10001)]
vis [0 for i in range(10001)]
max_bird 0
tree_id 0# 染色问题,并查集,如果没染色,深度搜索并染色
def dfs(cur):vis[cur] tree_idfor b in birds[cur]:if vis[b]0:dfs(b)for …
文章目录 HTTPS工作原理数据的加密和解密与HTTP相比,HTTPS增加了多少性能开销?Flow小结 HTTPS工作原理
HTTPS(Hypertext Transfer Protocol Secure)是 Hypertext Transfer Protocol(HTTP)的扩展。HTTPS使用…