NP完全性的概念为理解计算问题的复杂性提供了一个强大的工具。
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.
每个词都是一个选择,而每个选择都带有后果。
音乐是灵魂的语言。
"I’m not afraid of losing. I’m afraid of not trying."