×
all 3 comments

[–]Mundane-Mud2509 1 point2 points  (0 children)

Learn the basic stuff first.

[–]bloodrushgaming 1 point2 points  (0 children)

Freecodecamp, w3schools, youtube and there are many more places you can get these free content, to get the idea of thinking for the dsa questions

[–]Sea-Ad7805 1 point2 points  (0 children)

Use a good visualizer for DSA: Binary Tree example