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# Title Acceptance Difficulty
526 Beautiful Arrangement 55.3% Medium
425 Word Squares 42.5% Hard
411 Minimum Unique Word Abbreviation 32.6% Hard
401 Binary Watch 44.8% Easy
357 Count Numbers with Unique Digits 45.9% Medium
351 Android Unlock Patterns 43.6% Medium
320 Generalized Abbreviation 44.7% Medium
294 Flip Game II 46.2% Medium
291 Word Pattern II 38.0% Hard
267 Palindrome Permutation II 31.8% Medium
254 Factor Combinations 42.3% Medium
216 Combination Sum III 44.8% Medium
212 Word Search II 23.2% Hard
211 Add and Search Word - Data structure design 22.5% Medium
140 Word Break II 23.1% Hard
131 Palindrome Partitioning 33.0% Medium
126 Word Ladder II 14.1% Hard
93 Restore IP Addresses 27.1% Medium
90 Subsets II 35.9% Medium
89 Gray Code 40.9% Medium
79 Word Search 26.6% Medium
78 Subsets 40.1% Medium
77 Combinations 39.4% Medium
60 Permutation Sequence 28.3% Medium
52 N-Queens II 44.6% Hard
51 N-Queens 30.8% Hard
47 Permutations II 32.6% Medium
46 Permutations 43.4% Medium
44 Wildcard Matching 19.9% Hard
40 Combination Sum II 33.4% Medium
39 Combination Sum 38.3% Medium
37 Sudoku Solver 29.9% Hard
22 Generate Parentheses 44.6% Medium
17 Letter Combinations of a Phone Number 34.3% Medium
10 Regular Expression Matching 24.1% Hard
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