多项式时间归约的概念对于理解NP完全问题的结构至关重要。
Scars have the strange power to remind us that our past is real.
Every stitch tells a story—make sure yours is one of quality and integrity.
少数民族文化的真正美不在于其异国情调,而在于其韧性和真实性。
一个人想欺骗人类,首先必须化腐朽为神奇。
I write to find out what I think.
I’m very confident in who I am and what I do.