[SadCordDrone]

I am sure college grads (from decent Indian colleg) can solve this one.

The problem is they have done leetcode style of puzzles all their college life. - mostly control flow, numbers and DP / greedy / graph patterns.

Which is such narrow area of computer science.

They don't understand basics of - operating systems (eg: VMs), compilers (eg: compiled vs source code, optimization), languages (eg: type systems), networks (eg: NAT, firewall), software engineering (eg: writing modular code, version control).

All these things are as Computer Science as leetcode algorithms. These are in the syllabus, at least in a primitive form. But these kids are only tested on leetcode puzzles.

Ask anything deep on these and watch these DSA-generation kids struggle.