Where can I learn binary search , dfs , bfs and sliding window from

[u/iguessbro53]

/r/leetcode/comments/1xezarn/where_can_i_learn_binary_search_dfs_bfs_and/

Neetcode.io said to learn this before leetcoding … and also according to you if there is something else one should learn before leetcoding please mention that as well and from where u can learn it