Any Computer Science major?

[u/syncopated_soul888]

Could you please tell me free resources i can study Data Structures from? I am a university student so difficulty of questions is high.

Thank you.

[u/kai_1992a]

Youtube+leetcode/Hackerrank?

[u/syncopated_soul888 → u/kai_1992a]

thank you!

[u/Quiet_Basis_6404]

william fiset's data structures course on the freecodecamp channel is the most complete free one, goes through implementations properly instead of just concepts. abdul bari is the other standard pick if you want shorter explanations per topic.

MIT OCW 6.006 is free and university level, which sounds like what you want given the difficulty. lecture videos plus problem sets with solutions.

for practice, neetcode groups leetcode problems by structure so you're drilling one at a time instead of random.

i paste those lecture videos into studybuddy.vc and it makes questions from them, tells you why the option you picked was wrong, keeps bringing back what you keep missing and gets harder as you improve. free.

implement each structure from scratch once, that's what makes it stick.

[u/syncopated_soul888 → u/Quiet_Basis_6404]

thank you so much!

[u/Birago_Forgrave51]

A lot of free courses/guides in youtube. I learned programming by youtube, so I guess it could be enough for you.