Toolliyo Practice

Problems explorer

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

472 problems in this topic

# Title Topics Acceptance Pts Difficulty
301 Generate Parentheses — 30 Medium Solve
302 Graph Valid Tree — 30 Medium Solve
303 Happy Number — 20 Easy Solve
304 Kth Largest Element in an Array — 30 Medium Solve
305 Kth Smallest Element in a BST — 30 Medium Solve
306 Meeting Rooms — 20 Easy Solve
307 Merge Two Sorted Lists — 20 Easy Solve
308 Merge k Sorted Lists — 40 Hard Solve
309 Valid Anagram — 20 Easy Solve
310 Add Two Numbers — 30 Medium Solve
311 Alien Dictionary — 40 Hard Solve
312 Course Schedule II — 30 Medium Solve
313 Encode and Decode Strings — 30 Medium Solve
314 Generate Parentheses — 30 Medium Solve
315 Happy Number — 20 Easy Solve
316 Meeting Rooms II — 30 Medium Solve
317 Meeting Rooms II — 30 Medium Solve
318 Merge k Sorted Lists — 40 Hard Solve
319 Sliding Window Maximum — 40 Hard Solve
320 Valid Anagram — 20 Easy Solve
321 Walls and Gates — 30 Medium Solve
322 Word Search II — 40 Hard Solve
323 Course Schedule II — 30 Medium Solve
324 Find Median from Data Stream — 40 Hard Solve
325 Generate Parentheses — 30 Medium Solve
326 Generate Parentheses — 30 Medium Solve
327 Generate Parentheses — 30 Medium Solve
328 Graph Valid Tree — 30 Medium Solve
329 Happy Number — 20 Easy Solve
330 House Robber II — 30 Medium Solve
331 Implement Trie (Prefix Tree) — 30 Medium Solve
332 Invert Binary Tree — 20 Easy Solve
333 Word Search II — 40 Hard Solve
334 Add Two Numbers — 30 Medium Solve
335 Course Schedule II — 30 Medium Solve
336 Design Add and Search Words Data Structure — 30 Medium Solve
337 Find Median from Data Stream — 40 Hard Solve
338 Happy Number — 20 Easy Solve
339 House Robber II — 30 Medium Solve
340 Implement Trie (Prefix Tree) — 30 Medium Solve
341 Invert Binary Tree — 20 Easy Solve
342 Kth Smallest Element in a BST — 30 Medium Solve
343 Meeting Rooms II — 30 Medium Solve
344 Missing Number — 20 Easy Solve
345 Missing Number — 20 Easy Solve
346 Product of Array Except Self — 30 Medium Solve
347 Reverse Nodes in k-Group — 40 Hard Solve
348 Walls and Gates — 30 Medium Solve
349 Walls and Gates — 30 Medium Solve
350 Word Search II — 40 Hard Solve
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