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# Title Acceptance Difficulty
526 Beautiful Arrangement 54.1% Medium
425 Word Squares 42.6% Hard
411 Minimum Unique Word Abbreviation 31.7% Hard
401 Binary Watch 44.7% Easy
357 Count Numbers with Unique Digits 45.6% Medium
351 Android Unlock Patterns 43.2% Medium
320 Generalized Abbreviation 44.3% Medium
294 Flip Game II 45.9% Medium
291 Word Pattern II 37.8% Hard
267 Palindrome Permutation II 31.5% Medium
254 Factor Combinations 41.7% Medium
216 Combination Sum III 43.6% Medium
212 Word Search II 22.8% Hard
211 Add and Search Word - Data structure design 21.5% Medium
140 Word Break II 22.7% Hard
131 Palindrome Partitioning 32.0% Medium
126 Word Ladder II 13.8% Hard
93 Restore IP Addresses 26.5% Medium
90 Subsets II 35.1% Medium
89 Gray Code 40.2% Medium
79 Word Search 26.1% Medium
78 Subsets 38.6% Medium
77 Combinations 38.7% Medium
60 Permutation Sequence 27.8% Medium
52 N-Queens II 43.7% Hard
51 N-Queens 30.0% Hard
47 Permutations II 31.9% Medium
46 Permutations 42.1% Medium
44 Wildcard Matching 19.6% Hard
40 Combination Sum II 32.5% Medium
39 Combination Sum 37.2% Medium
37 Sudoku Solver 29.1% Hard
22 Generate Parentheses 43.3% Medium
17 Letter Combinations of a Phone Number 33.6% Medium
10 Regular Expression Matching 23.9% Hard
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