Absolutely horrible experience. Very rude interviewer and was told there would be no DSA, instead was asked to create a doubly linked list in C by memory and was asked another 15+ questions about C++ where I was expected to code the solution in <5 minutes from memory. Interviewer gave 0 feedback and wasn't even shared on anything like CoderPad where we could debug together. He also pasted snippets of code into the chat box and told me to fix it? (Became all jumbled from MS Teams formatting) and got defensive when I told him that I can't just code everything from scratch without at least referencing docs. They are asking quant firm level questions for a position that pays only $30 an hour, 0/10.

Where do I even start, asked me everything about C++ under the sun, learn how to implement data structures in C and write all the .h and .c functions.

Expect quant level interview questions with memory allocation in theory as well.