Hash Table

Subscribe to see which companies asked this question

You have solved  0/ 65 problems.
# Title Acceptance Difficulty
648 Replace Words 48.7% Medium
645 Set Mismatch 41.9% Easy
632 Smallest Range 42.6% Hard
624 Maximum Distance in Arrays 33.0% Easy
609 Find Duplicate File in System 53.3% Medium
599 Minimum Index Sum of Two Lists 47.5% Easy
594 Longest Harmonious Subsequence 40.6% Easy
575 Distribute Candies 59.5% Easy
554 Brick Wall 44.6% Medium
535 Encode and Decode TinyURL 74.1% Medium
525 Contiguous Array 38.5% Medium
508 Most Frequent Subtree Sum 52.2% Medium
500 Keyboard Row 60.0% Easy
463 Island Perimeter 57.2% Easy
454 4Sum II 46.2% Medium
451 Sort Characters By Frequency 50.8% Medium
447 Number of Boomerangs 44.9% Easy
438 Find All Anagrams in a String 33.6% Easy
409 Longest Palindrome 45.4% Easy
389 Find the Difference 51.0% Easy
381 Insert Delete GetRandom O(1) - Duplicates allowed 28.7% Hard
380 Insert Delete GetRandom O(1) 39.0% Medium
359 Logger Rate Limiter 59.6% Easy
358 Rearrange String k Distance Apart 31.9% Hard
356 Line Reflection 30.1% Medium
355 Design Twitter 25.3% Medium
350 Intersection of Two Arrays II 44.6% Easy
349 Intersection of Two Arrays 47.2% Easy
347 Top K Frequent Elements 47.9% Medium
340 Longest Substring with At Most K Distinct Characters 38.6% Hard
336 Palindrome Pairs 26.0% Hard
325 Maximum Size Subarray Sum Equals k 42.3% Medium
314 Binary Tree Vertical Order Traversal 36.4% Medium
311 Sparse Matrix Multiplication 50.7% Medium
299 Bulls and Cows 34.6% Medium
290 Word Pattern 33.0% Easy
288 Unique Word Abbreviation 16.5% Medium
274 H-Index 33.0% Medium
266 Palindrome Permutation 56.7% Easy
249 Group Shifted Strings 41.1% Medium
246 Strobogrammatic Number 39.7% Easy
244 Shortest Word Distance II 37.6% Medium
242 Valid Anagram 46.3% Easy
219 Contains Duplicate II 32.3% Easy
217 Contains Duplicate 45.5% Easy
205 Isomorphic Strings 33.7% Easy
204 Count Primes 26.5% Easy
202 Happy Number 40.5% Easy
187 Repeated DNA Sequences 31.2% Medium
170 Two Sum III - Data structure design 24.3% Easy
166 Fraction to Recurring Decimal 17.4% Medium
159 Longest Substring with At Most Two Distinct Characters 41.0% Hard
149 Max Points on a Line 15.3% Hard
138 Copy List with Random Pointer 26.3% Medium
136 Single Number 54.3% Easy
94 Binary Tree Inorder Traversal 46.3% Medium
85 Maximal Rectangle 27.7% Hard
76 Minimum Window Substring 25.1% Hard
49 Group Anagrams 34.4% Medium
37 Sudoku Solver 29.9% Hard
36 Valid Sudoku 35.6% Medium
30 Substring with Concatenation of All Words 21.9% Hard
18 4Sum 26.7% Medium
3 Longest Substring Without Repeating Characters 24.3% Medium
1 Two Sum 34.1% Easy
  Send Feedback