1
Q
Implement Trie (Prefix Tree)
Implement a trie with insert, search, and startsWith methods.
A
Medium
flashcards
Decks in class (93)
# Cards
-
Longest Substring Without Repeating Characters1
-
Container With Most Water1
-
Longest Palindromic Substring1
-
Add Two Numbers1
-
Sort List1
-
Product of Array Except Self1
-
3Sum1
-
Odd Even Linked List1
-
Word Break1
-
Pow(x, n)1
-
Letter Combinations of a Phone Number1
-
Number of Islands1
-
Copy List with Random Pointer1
-
Generate Parentheses1
-
Group Anagrams1
-
Maximum Product Subarray1
-
Evaluate Reverse Polish Notation1
-
Shuffle an Array1
-
Rotate Image1
-
String to Integer (atoi)1
-
Largest Number1
-
Merge Intervals1
-
Search in Rotated Sorted Array1
-
Valid Sudoku1
-
Permutations1
-
Find the Duplicate Number*1
-
Word Search1
-
Spiral Matrix1
-
Top K Frequent Elements1
-
Game of Life1
-
Divide Two Integers1
-
Search a 2D Matrix II1
-
Perfect Squares1
-
Remove Nth Node From End of List1
-
Set Matrix Zeroes1
-
Find Peak Element1
-
Gas Station1
-
Word Ladder1
-
Lowest Common Ancestor of a Binary Tree1
-
Populating Next Right Pointers in Each Node1
-
Unique Paths1
-
Kth Largest Element in an Array1
-
Binary Tree Level Order Traversal1
-
Jump Game1
-
Construct Binary Tree from Preorder and Inorder Traversal1
-
Subsets1
-
Subsets II1
-
Fraction to Recurring Decimal1
-
Sort Colors1
-
Longest Substring with At Least K Repeating Characters1
-
Decode Ways1
-
Increasing Triplet Subsequence1
-
Implement Trie (Prefix Tree)1
-
Flatten 2D Vector1
-
Binary Tree Inorder Traversal1
-
Kth Smallest Element in a Sorted Matrix1
-
Find the Celebrity1
-
Insert Delete GetRandom O(1)1
-
Validate Binary Search Tree1
-
Flatten 2D Vector1
-
Surrounded Regions1
-
Course Schedule1
-
Meeting Rooms II1
-
Basic Calculator II1
-
Palindrome Partitioning1
-
Search for a Range1
-
Kth Smallest Element in a BST1
-
Wiggle Sort II1
-
Binary Tree Zigzag Level Order Traversal1
-
Inorder Successor in BST1
-
Missing Ranges1
-
4Sum II1
-
Design Tic-Tac-Toe1
-
Course Schedule II1
-
Best Time to Buy and Sell Stock with Cooldown1
-
Combination Sum1
-
Combination Sum IV1
-
Combination Sum III1
-
Counting Bits1
-
114. Flatten Binary Tree to Linked List1
-
Friend Circles1
-
Linked List Cycle II1
-
Maximal Square1
-
Partition Equal Subset Sum1
-
Queue Reconstruction by Height1
-
Single Element in a Sorted Array1
-
Subarray Sum Equals K1
-
Target Sum1
-
Minimum Height Trees1
-
Unique Binary Search Trees1
-
House Robber II1
-
House Robber III1
-
Decode String1
