Big-O Algorithm Complexity Cheat Sheet
You can pass some interviews by blindly memorizing, but it's unnecessary. If you understand a concept, then you can reason its big O. Memorization implies a superficial understanding that may be revealed later.<p>If you don't understand something, spend a few hours and implement it.<p><pre><code>    "I hear and I forget. I see and I remember. I do and I understand."

    - Confucious</code></pre>