Toolliyo Practice

Problems explorer

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

8773 problems

# Title Topics Acceptance Pts Difficulty
2051 Combination Sum 30 Medium Solve
2052 Contains Duplicate 20 Easy Solve
2053 Course Schedule 30 Medium Solve
2054 Diameter of Binary Tree 20 Easy Solve
2055 Hand of Straights 30 Medium Solve
2056 Longest Increasing Path in a Matrix 40 Hard Solve
2057 Lowest Common Ancestor of a Binary Search Tree 30 Medium Solve
2058 Meeting Rooms 20 Easy Solve
2059 Minimum Interval to Include Each Query 40 Hard Solve
2060 Multiply Strings 30 Medium Solve
2061 N-Queens 40 Hard Solve
2062 Number of 1 Bits 20 Easy Solve
2063 Product of Array Except Self 30 Medium Solve
2064 Redundant Connection 30 Medium Solve
2065 Swim in Rising Water 40 Hard Solve
2066 Time Based Key-Value Store 30 Medium Solve
2067 Unique Paths 30 Medium Solve
2068 Binary Tree Maximum Path Sum 40 Hard Solve
2069 Container With Most Water 30 Medium Solve
2070 Count Good Nodes in Binary Tree 30 Medium Solve
2071 Distinct Subsequences 40 Hard Solve
2072 Encode and Decode Strings 30 Medium Solve
2073 Implement Trie (Prefix Tree) 30 Medium Solve
2074 Jump Game II 30 Medium Solve
2075 Longest Palindromic Substring 30 Medium Solve
2076 Median of Two Sorted Arrays 40 Hard Solve
2077 Meeting Rooms 20 Easy Solve
2078 Min Cost to Connect All Points 30 Medium Solve
2079 Min Stack 30 Medium Solve
2080 Multiply Strings 30 Medium Solve
2081 N-Queens 40 Hard Solve
2082 Plus One 20 Easy Solve
2083 Sum of Two Integers 30 Medium Solve
2084 Swim in Rising Water 40 Hard Solve
2085 Valid Anagram 20 Easy Solve
2086 Walls and Gates 30 Medium Solve
2087 Best Time to Buy and Sell Stock 20 Easy Solve
2088 Design Add and Search Words Data Structure 30 Medium Solve
2089 Gas Station 30 Medium Solve
2090 House Robber 30 Medium Solve
2091 K Closest Points to Origin 30 Medium Solve
2092 Longest Consecutive Sequence 30 Medium Solve
2093 Longest Palindromic Substring 30 Medium Solve
2094 Merge Intervals 30 Medium Solve
2095 Partition Equal Subset Sum 30 Medium Solve
2096 Plus One 20 Easy Solve
2097 Product of Array Except Self 30 Medium Solve
2098 Reconstruct Itinerary 40 Hard Solve
2099 Reverse Bits 20 Easy Solve
2100 Reverse Linked List 20 Easy Solve
Toolliyo Assistant
Ask about tutorials, ebooks, training, pricing, mentor services, and support. I use public site content only—not admin or internal tools.

care@toolliyo.com

Need callback? Share your details