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
51 Jump Game II — 30 Medium Solve
52 Last Stone Weight — 20 Easy Solve
53 Linked List Cycle — 20 Easy Solve
54 Longest Consecutive Sequence — 30 Medium Solve
55 Longest Increasing Subsequence — 30 Medium Solve
56 Longest Palindromic Substring — 30 Medium Solve
57 Max Area of Island — 30 Medium Solve
58 Multiply Strings — 30 Medium Solve
59 Permutations — 30 Medium Solve
60 Pow(x, n) — 30 Medium Solve
61 Subtree of Another Tree — 20 Easy Solve
62 Sum of Two Integers — 30 Medium Solve
63 Task Scheduler — 30 Medium Solve
64 Valid Sudoku — 30 Medium Solve
65 Combination Sum — 30 Medium Solve
66 Combination Sum II — 30 Medium Solve
67 Construct Binary Tree from Preorder and Inorder Traversal — 30 Medium Solve
68 Diameter of Binary Tree — 20 Easy Solve
69 Insert Interval — 30 Medium Solve
70 Interleaving String — 30 Medium Solve
71 Longest Substring Without Repeating Characters — 30 Medium Solve
72 Merge Intervals — 30 Medium Solve
73 Missing Number — 20 Easy Solve
74 Number of Islands — 30 Medium Solve
75 Partition Equal Subset Sum — 30 Medium Solve
76 Product of Array Except Self — 30 Medium Solve
77 Redundant Connection — 30 Medium Solve
78 Sum of Two Integers — 30 Medium Solve
79 Time Based Key-Value Store — 30 Medium Solve
80 Trapping Rain Water — 40 Hard Solve
81 Add Two Numbers — 30 Medium Solve
82 Container With Most Water — 30 Medium Solve
83 Count Good Nodes in Binary Tree — 30 Medium Solve
84 Course Schedule — 30 Medium Solve
85 Evaluate Reverse Polish Notation — 30 Medium Solve
86 Jump Game — 30 Medium Solve
87 Last Stone Weight — 20 Easy Solve
88 Longest Increasing Path in a Matrix — 40 Hard Solve
89 Max Area of Island — 30 Medium Solve
90 N-Queens — 40 Hard Solve
91 Product of Array Except Self — 30 Medium Solve
92 Set Matrix Zeroes — 30 Medium Solve
93 Spiral Matrix — 30 Medium Solve
94 Swim in Rising Water — 40 Hard Solve
95 Top K Frequent Elements — 30 Medium Solve
96 Valid Parentheses — 20 Easy Solve
97 3Sum — 30 Medium Solve
98 Binary Search — 20 Easy Solve
99 Combination Sum — 30 Medium Solve
100 Container With Most Water — 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