understand batch gradient descent, stochastic gradient descent, and mini-batch gradient descent.

understand how backward propagation works in gradient descent.

learn how to manage you keys with GPG, and use it with ssh and git and pass.

DSU on tree answers subtree queries by keeping the largest child's contribution and rebuilding only the small parts. The trick is not union-find; it is small-to-large merging hidden inside a DFS.

compare shortest path algorithms: dijkstra, floyd, bellman-ford

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connect to android via TCP/IP

this is my i3 window manager configuration

Pros and cons of different types of cloud.

introduce randomness into your C++ programs, the right way.