Toolliyo Practice

Problems explorer

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

245 problems in this topic

# Title Topics Acceptance Pts Difficulty
101 Last Stone Weight — 20 Easy Solve
102 Serialize and Deserialize Binary Tree — 40 Hard Solve
103 Set Matrix Zeroes — 30 Medium Solve
104 Word Search — 30 Medium Solve
105 Combination Sum — 30 Medium Solve
106 Kth Largest Element in an Array — 30 Medium Solve
107 Merge Triplets to Form Target Triplet — 30 Medium Solve
108 Number of 1 Bits — 20 Easy Solve
109 Pacific Atlantic Water Flow — 30 Medium Solve
110 Reverse Integer — 30 Medium Solve
111 Subsets — 30 Medium Solve
112 Task Scheduler — 30 Medium Solve
113 Combination Sum II — 30 Medium Solve
114 Letter Combinations of a Phone Number — 30 Medium Solve
115 Meeting Rooms II — 30 Medium Solve
116 N-Queens — 40 Hard Solve
117 Number of Connected Components in an Undirected Graph — 30 Medium Solve
118 Subsets II — 30 Medium Solve
119 Valid Anagram — 20 Easy Solve
120 Valid Sudoku — 30 Medium Solve
121 Alien Dictionary — 40 Hard Solve
122 Clone Graph — 30 Medium Solve
123 Longest Consecutive Sequence — 30 Medium Solve
124 Max Area of Island — 30 Medium Solve
125 Pow(x, n) — 30 Medium Solve
126 Rotting Oranges — 30 Medium Solve
127 Trapping Rain Water — 40 Hard Solve
128 Walls and Gates — 30 Medium Solve
129 Course Schedule II — 30 Medium Solve
130 Longest Substring Without Repeating Characters — 30 Medium Solve
131 Missing Number — 20 Easy Solve
132 Palindromic Substrings — 30 Medium Solve
133 Reconstruct Itinerary — 40 Hard Solve
134 Redundant Connection — 30 Medium Solve
135 Valid Parentheses — 20 Easy Solve
136 Word Ladder — 40 Hard Solve
137 Binary Search — 20 Easy Solve
138 Climbing Stairs — 20 Easy Solve
139 Evaluate Reverse Polish Notation — 30 Medium Solve
140 Min Cost Climbing Stairs — 20 Easy Solve
141 Network Delay Time — 30 Medium Solve
142 Swim in Rising Water — 40 Hard Solve
143 Top K Frequent Elements — 30 Medium Solve
144 Unique Paths — 30 Medium Solve
145 3Sum — 30 Medium Solve
146 Coin Change — 30 Medium Solve
147 Distinct Subsequences — 40 Hard Solve
148 House Robber II — 30 Medium Solve
149 Koko Eating Bananas — 30 Medium Solve
150 Longest Palindromic Substring — 30 Medium Solve
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