我想問一下為什麼np 跟co-np有交集而不是兩個獨立的? co-np 為np complement 要怎麼形容他們的關係? 有交集的部份是? 哪部份= =a 還有個問題如果以 ... ... <看更多>

In summary: NP is concerned with a "yes" answer to some decision problem. Co-NP is concerned with a "no" answer to the same, but complemented, ... ... <看更多>

Textbooks:Computational Complexity: A Modern Approach by S. Arora and B. Barak.Algorithm Design by J. Kleinberg and E. Tardos. ... <看更多>

NP means some decision branch returns true in polynomial time. co-NP means all decision branches return true in polynomial time. ... <看更多>