Toolliyo Practice

Problems explorer

Browse by topic · auto-judge · company sheets · roadmaps — not just a problem dump.

8773 problems

# Title Topics Acceptance Pts Difficulty
201 Word Break — 30 Medium Solve
202 Balanced Binary Tree — 20 Easy Solve
203 Car Fleet — 30 Medium Solve
204 Cheapest Flights Within K Stops — 30 Medium Solve
205 Clone Graph — 30 Medium Solve
206 Coin Change — 30 Medium Solve
207 Coin Change 2 — 30 Medium Solve
208 Combination Sum II — 30 Medium Solve
209 Construct Binary Tree from Preorder and Inorder Traversal — 30 Medium Solve
210 Container With Most Water — 30 Medium Solve
211 Contains Duplicate — 20 Easy Solve
212 Contains Duplicate — 20 Easy Solve
213 Course Schedule II — 30 Medium Solve
214 Daily Temperatures — 30 Medium Solve
215 Decode Ways — 30 Medium Solve
216 Diameter of Binary Tree — 20 Easy Solve
217 Graph Valid Tree — 30 Medium Solve
218 Group Anagrams — 30 Medium Solve
219 House Robber — 30 Medium Solve
220 Implement Trie (Prefix Tree) — 30 Medium Solve
221 Jump Game — 30 Medium Solve
222 Jump Game — 30 Medium Solve
223 Jump Game II — 30 Medium Solve
224 Jump Game II — 30 Medium Solve
225 K Closest Points to Origin — 30 Medium Solve
226 Kth Largest Element in a Stream — 20 Easy Solve
227 Kth Smallest Element in a BST — 30 Medium Solve
228 LRU Cache — 30 Medium Solve
229 Last Stone Weight — 20 Easy Solve
230 Linked List Cycle — 20 Easy Solve
231 Longest Common Subsequence — 30 Medium Solve
232 Longest Consecutive Sequence — 30 Medium Solve
233 Longest Increasing Subsequence — 30 Medium Solve
234 Longest Palindromic Substring — 30 Medium Solve
235 Max Area of Island — 30 Medium Solve
236 Median of Two Sorted Arrays — 40 Hard Solve
237 Median of Two Sorted Arrays — 40 Hard Solve
238 Meeting Rooms — 20 Easy Solve
239 Meeting Rooms II — 30 Medium Solve
240 Merge Triplets to Form Target Triplet — 30 Medium Solve
241 Merge Two Sorted Lists — 20 Easy Solve
242 Minimum Window Substring — 40 Hard Solve
243 Missing Number — 20 Easy Solve
244 Multiply Strings — 30 Medium Solve
245 Non-overlapping Intervals — 30 Medium Solve
246 Number of 1 Bits — 20 Easy Solve
247 Number of Islands — 30 Medium Solve
248 Permutations — 30 Medium Solve
249 Pow(x, n) — 30 Medium Solve
250 Product of Array Except Self — 30 Medium Solve
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