Toolliyo Practice

Problems explorer

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

8773 problems

# Title Topics Acceptance Pts Difficulty
1 Add Two Numbers — 30 Medium Solve
2 Best Time to Buy and Sell Stock — 20 Easy Solve
3 Best Time to Buy and Sell Stock with Cooldown — 30 Medium Solve
4 Binary Search — 20 Easy Solve
5 Binary Tree Maximum Path Sum — 40 Hard Solve
6 Binary Tree Right Side View — 30 Medium Solve
7 Burst Balloons — 40 Hard Solve
8 Coin Change — 30 Medium Solve
9 Container With Most Water — 30 Medium Solve
10 Container With Most Water — 30 Medium Solve
11 Contains Duplicate — 20 Easy Solve
12 Copy List with Random Pointer — 30 Medium Solve
13 Course Schedule II — 30 Medium Solve
14 Find Median from Data Stream — 40 Hard Solve
15 Graph Valid Tree — 30 Medium Solve
16 Group Anagrams — 30 Medium Solve
17 Hand of Straights — 30 Medium Solve
18 House Robber II — 30 Medium Solve
19 House Robber II — 30 Medium Solve
20 Implement Trie (Prefix Tree) — 30 Medium Solve
21 Insert Interval — 30 Medium Solve
22 Insert Interval — 30 Medium Solve
23 Interleaving String — 30 Medium Solve
24 Jump Game II — 30 Medium Solve
25 Koko Eating Bananas — 30 Medium Solve
26 Koko Eating Bananas — 30 Medium Solve
27 Kth Largest Element in an Array — 30 Medium Solve
28 LRU Cache — 30 Medium Solve
29 Largest Rectangle in Histogram — 40 Hard Solve
30 Longest Common Subsequence — 30 Medium Solve
31 Longest Palindromic Substring — 30 Medium Solve
32 Longest Palindromic Substring — 30 Medium Solve
33 Longest Substring Without Repeating Characters — 30 Medium Solve
34 Lowest Common Ancestor of a Binary Search Tree — 30 Medium Solve
35 Max Area of Island — 30 Medium Solve
36 Maximum Depth of Binary Tree — 20 Easy Solve
37 Merge Intervals — 30 Medium Solve
38 Merge Triplets to Form Target Triplet — 30 Medium Solve
39 Merge Two Sorted Lists — 20 Easy Solve
40 Merge k Sorted Lists — 40 Hard Solve
41 Min Cost to Connect All Points — 30 Medium Solve
42 Min Stack — 30 Medium Solve
43 Minimum Interval to Include Each Query — 40 Hard Solve
44 Missing Number — 20 Easy Solve
45 Multiply Strings — 30 Medium Solve
46 Number of Connected Components in an Undirected Graph — 30 Medium Solve
47 Number of Islands — 30 Medium Solve
48 Palindrome Partitioning — 30 Medium Solve
49 Partition Labels — 30 Medium Solve
50 Reconstruct Itinerary — 40 Hard Solve
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