Hi!
I posted a new tutorial on Persistent Segment Tree on my YouTube channel. I go over the main idea behind persistency and solve CSES Range Queries and Copies. Thanks for watching!
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Full support Bansal Classes
The "Bansal Classes" we actually need XD.
and 1st module itself is segment tree. Reminds me of actual Bansal classes.
I would really love to hear "Things I know" list from you :P