Toolliyo Practice

Problems explorer

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

8773 problems

# Title Topics Acceptance Pts Difficulty
1201 Swim in Rising Water — 40 Hard Solve
1202 Top K Frequent Elements — 30 Medium Solve
1203 Trapping Rain Water — 40 Hard Solve
1204 Unique Paths — 30 Medium Solve
1205 Valid Parentheses — 20 Easy Solve
1206 Word Search II — 40 Hard Solve
1207 3Sum — 30 Medium Solve
1208 Alien Dictionary — 40 Hard Solve
1209 Best Time to Buy and Sell Stock — 20 Easy Solve
1210 Binary Search — 20 Easy Solve
1211 Binary Tree Level Order Traversal — 30 Medium Solve
1212 Car Fleet — 30 Medium Solve
1213 Coin Change — 30 Medium Solve
1214 Coin Change — 30 Medium Solve
1215 Coin Change 2 — 30 Medium Solve
1216 Construct Binary Tree from Preorder and Inorder Traversal — 30 Medium Solve
1217 Container With Most Water — 30 Medium Solve
1218 Counting Bits — 20 Easy Solve
1219 Course Schedule — 30 Medium Solve
1220 Course Schedule II — 30 Medium Solve
1221 Design Twitter — 30 Medium Solve
1222 Distinct Subsequences — 40 Hard Solve
1223 Evaluate Reverse Polish Notation — 30 Medium Solve
1224 Find Median from Data Stream — 40 Hard Solve
1225 Gas Station — 30 Medium Solve
1226 Group Anagrams — 30 Medium Solve
1227 Happy Number — 20 Easy Solve
1228 Happy Number — 20 Easy Solve
1229 House Robber II — 30 Medium Solve
1230 Implement Trie (Prefix Tree) — 30 Medium Solve
1231 Insert Interval — 30 Medium Solve
1232 Invert Binary Tree — 20 Easy Solve
1233 Jump Game II — 30 Medium Solve
1234 K Closest Points to Origin — 30 Medium Solve
1235 Koko Eating Bananas — 30 Medium Solve
1236 Kth Largest Element in a Stream — 20 Easy Solve
1237 Kth Largest Element in an Array — 30 Medium Solve
1238 LRU Cache — 30 Medium Solve
1239 Letter Combinations of a Phone Number — 30 Medium Solve
1240 Letter Combinations of a Phone Number — 30 Medium Solve
1241 Longest Common Subsequence — 30 Medium Solve
1242 Longest Palindromic Substring — 30 Medium Solve
1243 Longest Substring Without Repeating Characters — 30 Medium Solve
1244 Max Area of Island — 30 Medium Solve
1245 Maximum Depth of Binary Tree — 20 Easy Solve
1246 Maximum Product Subarray — 30 Medium Solve
1247 Merge Intervals — 30 Medium Solve
1248 Merge Two Sorted Lists — 20 Easy Solve
1249 Merge k Sorted Lists — 40 Hard Solve
1250 Merge k Sorted Lists — 40 Hard Solve
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