Toolliyo Practice

Problems explorer

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

2100 problems in this topic

# Title Topics Acceptance Pts Difficulty
1801 Insert Interval 30 Medium Solve
1802 Interleaving String 30 Medium Solve
1803 Jump Game 30 Medium Solve
1804 Jump Game II 30 Medium Solve
1805 K Closest Points to Origin 30 Medium Solve
1806 Kth Largest Element in an Array 30 Medium Solve
1807 LRU Cache 30 Medium Solve
1808 Largest Rectangle in Histogram 40 Hard Solve
1809 Letter Combinations of a Phone Number 30 Medium Solve
1810 Longest Consecutive Sequence 30 Medium Solve
1811 Longest Increasing Subsequence 30 Medium Solve
1812 Longest Repeating Character Replacement 30 Medium Solve
1813 Longest Substring Without Repeating Characters 30 Medium Solve
1814 Lowest Common Ancestor of a Binary Search Tree 30 Medium Solve
1815 Lowest Common Ancestor of a Binary Search Tree 30 Medium Solve
1816 Max Area of Island 30 Medium Solve
1817 Maximum Product Subarray 30 Medium Solve
1818 Maximum Product Subarray 30 Medium Solve
1819 Meeting Rooms 20 Easy Solve
1820 Merge Triplets to Form Target Triplet 30 Medium Solve
1821 Merge k Sorted Lists 40 Hard Solve
1822 Min Cost Climbing Stairs 20 Easy Solve
1823 Minimum Window Substring 40 Hard Solve
1824 Minimum Window Substring 40 Hard Solve
1825 Multiply Strings 30 Medium Solve
1826 Multiply Strings 30 Medium Solve
1827 N-Queens 40 Hard Solve
1828 Non-overlapping Intervals 30 Medium Solve
1829 Number of 1 Bits 20 Easy Solve
1830 Pacific Atlantic Water Flow 30 Medium Solve
1831 Partition Equal Subset Sum 30 Medium Solve
1832 Pow(x, n) 30 Medium Solve
1833 Pow(x, n) 30 Medium Solve
1834 Reconstruct Itinerary 40 Hard Solve
1835 Redundant Connection 30 Medium Solve
1836 Regular Expression Matching 40 Hard Solve
1837 Remove Nth Node From End of List 30 Medium Solve
1838 Reorder List 30 Medium Solve
1839 Reverse Integer 30 Medium Solve
1840 Sliding Window Maximum 40 Hard Solve
1841 Subsets II 30 Medium Solve
1842 Surrounded Regions 30 Medium Solve
1843 Top K Frequent Elements 30 Medium Solve
1844 Valid Anagram 20 Easy Solve
1845 Valid Palindrome 20 Easy Solve
1846 Valid Parenthesis String 30 Medium Solve
1847 Walls and Gates 30 Medium Solve
1848 Word Search 30 Medium Solve
1849 3Sum 30 Medium Solve
1850 Best Time to Buy and Sell Stock with Cooldown 30 Medium 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