Toolliyo Practice

Problems explorer

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

505 problems in this topic

# Title Topics Acceptance Pts Difficulty
401 Best Time to Buy and Sell Stock with Cooldown — 30 Medium Solve
402 Combination Sum — 30 Medium Solve
403 Container With Most Water — 30 Medium Solve
404 Count Good Nodes in Binary Tree — 30 Medium Solve
405 Counting Bits — 20 Easy Solve
406 Design Twitter — 30 Medium Solve
407 Koko Eating Bananas — 30 Medium Solve
408 Maximum Product Subarray — 30 Medium Solve
409 Merge Triplets to Form Target Triplet — 30 Medium Solve
410 Number of 1 Bits — 20 Easy Solve
411 Palindrome Partitioning — 30 Medium Solve
412 Partition Labels — 30 Medium Solve
413 Reverse Nodes in k-Group — 40 Hard Solve
414 Two Sum — 20 Easy Solve
415 Two Sum II - Input Array Is Sorted — 30 Medium Solve
416 Walls and Gates — 30 Medium Solve
417 Burst Balloons — 40 Hard Solve
418 Coin Change 2 — 30 Medium Solve
419 Design Add and Search Words Data Structure — 30 Medium Solve
420 Lowest Common Ancestor of a Binary Search Tree — 30 Medium Solve
421 Meeting Rooms II — 30 Medium Solve
422 Minimum Interval to Include Each Query — 40 Hard Solve
423 N-Queens — 40 Hard Solve
424 Permutation in String — 30 Medium Solve
425 Reconstruct Itinerary — 40 Hard Solve
426 Reorder List — 30 Medium Solve
427 Sliding Window Maximum — 40 Hard Solve
428 Surrounded Regions — 30 Medium Solve
429 Two Sum — 20 Easy Solve
430 Valid Anagram — 20 Easy Solve
431 Valid Palindrome — 20 Easy Solve
432 Word Search — 30 Medium Solve
433 Binary Tree Maximum Path Sum — 40 Hard Solve
434 Daily Temperatures — 30 Medium Solve
435 Design Twitter — 30 Medium Solve
436 Graph Valid Tree — 30 Medium Solve
437 Largest Rectangle in Histogram — 40 Hard Solve
438 Longest Consecutive Sequence — 30 Medium Solve
439 Longest Repeating Character Replacement — 30 Medium Solve
440 Merge Triplets to Form Target Triplet — 30 Medium Solve
441 Merge k Sorted Lists — 40 Hard Solve
442 Min Cost Climbing Stairs — 20 Easy Solve
443 Multiply Strings — 30 Medium Solve
444 Pacific Atlantic Water Flow — 30 Medium Solve
445 Pow(x, n) — 30 Medium Solve
446 Regular Expression Matching — 40 Hard Solve
447 Valid Palindrome — 20 Easy Solve
448 Walls and Gates — 30 Medium Solve
449 Cheapest Flights Within K Stops — 30 Medium Solve
450 Generate Parentheses — 30 Medium Solve
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