Practicing 100s of Data Structures MCQ GeeksForGeeks for Google Online Challenge for Summer Interns

This really helped me clear my concepts of data structures

what topics are important for the google online coding challenge for new grad SWE roles 2021? please tell the important ones.

For which role is is it ?Can I apply for the online challenge now?

Hello sir we received Google Online Challenge GOCT22 MCQ Exam link. May I knows what types of questions will ask in the Exam. Do u have previous years Questions paper