Toolliyo Practice

Problems explorer

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

8773 problems

# Title Topics Acceptance Pts Difficulty
2001 Spiral Matrix — 30 Medium Solve
2002 Subtree of Another Tree — 20 Easy Solve
2003 Swim in Rising Water — 40 Hard Solve
2004 Task Scheduler — 30 Medium Solve
2005 Time Based Key-Value Store — 30 Medium Solve
2006 Time Based Key-Value Store — 30 Medium Solve
2007 Top K Frequent Elements — 30 Medium Solve
2008 Top K Frequent Elements — 30 Medium Solve
2009 Trapping Rain Water — 40 Hard Solve
2010 Word Ladder — 40 Hard Solve
2011 Add Two Numbers — 30 Medium Solve
2012 Alien Dictionary — 40 Hard Solve
2013 Combination Sum II — 30 Medium Solve
2014 Construct Binary Tree from Preorder and Inorder Traversal — 30 Medium Solve
2015 Contains Duplicate — 20 Easy Solve
2016 Edit Distance — 40 Hard Solve
2017 Find Minimum in Rotated Sorted Array — 30 Medium Solve
2018 Last Stone Weight — 20 Easy Solve
2019 Longest Common Subsequence — 30 Medium Solve
2020 Longest Palindromic Substring — 30 Medium Solve
2021 Max Area of Island — 30 Medium Solve
2022 Median of Two Sorted Arrays — 40 Hard Solve
2023 Merge Intervals — 30 Medium Solve
2024 Multiply Strings — 30 Medium Solve
2025 Partition Labels — 30 Medium Solve
2026 Permutations — 30 Medium Solve
2027 Regular Expression Matching — 40 Hard Solve
2028 Remove Nth Node From End of List — 30 Medium Solve
2029 Spiral Matrix — 30 Medium Solve
2030 Combination Sum — 30 Medium Solve
2031 Edit Distance — 40 Hard Solve
2032 Encode and Decode Strings — 30 Medium Solve
2033 Hand of Straights — 30 Medium Solve
2034 Last Stone Weight — 20 Easy Solve
2035 Linked List Cycle — 20 Easy Solve
2036 Max Area of Island — 30 Medium Solve
2037 Maximum Depth of Binary Tree — 20 Easy Solve
2038 Minimum Interval to Include Each Query — 40 Hard Solve
2039 Number of Islands — 30 Medium Solve
2040 Palindromic Substrings — 30 Medium Solve
2041 Partition Equal Subset Sum — 30 Medium Solve
2042 Partition Labels — 30 Medium Solve
2043 Redundant Connection — 30 Medium Solve
2044 Reverse Nodes in k-Group — 40 Hard Solve
2045 Search in Rotated Sorted Array — 30 Medium Solve
2046 Set Matrix Zeroes — 30 Medium Solve
2047 Single Number — 20 Easy Solve
2048 Sum of Two Integers — 30 Medium Solve
2049 Best Time to Buy and Sell Stock — 20 Easy Solve
2050 Binary Tree Right Side View — 30 Medium Solve
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