Use this as a fast-revision board before interviews: pick a track, filter by difficulty or topic, and move through the most interview-relevant sets without digging through multiple pages.
DSA Problems
50 easy · 103 medium · 47 hard
Machine Coding
10 medium · 10 hard
DSA Categories
Arrays, strings, linked list, trees, graphs, DP, search
Prep Goal
High-signal items in one quick interview-prep route
Start with 2 easy warm-ups, then do 3 medium problems from one category.
End the DSA block with 1 hard problem or 1 machine-coding task outline.
If you are short on time, prioritize arrays, strings, trees, graphs, and DP.
For frontend-heavy rounds, pair one DSA set with one machine-coding task every day.
Arrays
5 hard problems inside this category
Strings
5 hard problems inside this category
Linked List
5 hard problems inside this category
Trees
5 hard problems inside this category
Graphs
7 hard problems inside this category
DP
15 hard problems inside this category
Searching/Sorting
5 hard problems inside this category
25 of 200 results