The Difference Between Reading an Algorithm and Understanding It

You read the explanation. Every sentence makes sense. Then you close the tab, open a problem, and the u understanding is gone. This experience is so common it should have a name. It happens because reading and understanding are two different cognitive activities, and most DSA resources only support the first. Why reading is not enough When you read an algorithm explanation, you follow a sequence of sentences in order. Each one makes sense. The logic holds together. But this creates surface-level