To Do

Word Ladder IIFeb 11
(matrix; graph)

Distinct SubsequencesOct 19 '12
(recursive -> DP : using count of how much chars are removed  ?? )

Recover Binary Search TreeSep 1 '12
(see dropbox)

Interleaving StringAug 31 '12
(not constant space)

Unique Binary Search Trees IIAug 27 '12
Unique Binary Search TreesAug 27 '12
(catalen number)

Restore IP AddressesAug 8 '12
(see dropbox)

---start here
Subsets IIJun 25 '12
(to see dropbox)

Scramble StringApr 30 '12
(To think about it)

Partition ListApr 30 '12
(to optimize)

Maximal RectangleApr 24 '12
(To Do)

Largest Rectangle in HistogramApr 23 '12
(Do and then optimize, similar to above)

Search in Rotated Sorted Array IIApr 20 '12
(algorithm with less complexity ?)

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Remove Duplicates from Sorted Array IIApr 19 '12
Word SearchApr 18 '12
SubsetsApr 18 '12
CombinationsApr 18 '12
Minimum Window SubstringApr 15 '12
Sort ColorsApr 9 '12

Edit DistanceApr 4 '12
Simplify PathApr 4 '12
Climbing StairsApr 3 '12
Sqrt(x)Apr 3 '12
Text JustificationApr 3 '12

Valid NumberApr 2 '12
Add BinaryApr 2 '12
Merge Two Sorted ListsMar 30 '12
Minimum Path SumMar 29 '12

Unique Paths IIMar 29 '12

Unique PathsMar 28 '12

Rotate ListMar 28 '12

Permutation SequenceMar 28 '12

Maximum SubarrayMar 21 '12

N-Queens IIMar 20 '12
N-QueensMar 20 '12

AnagramsMar 19 '12

Permutations IIMar 17 '12
PermutationsMar 17 '12
Jump Game IIMar 17 '12
Wildcard MatchingMar 16 '12

Trapping Rain WaterMar 10 '12
Combination Sum IIMar 7 '12
Combination SumMar 7 '12
Count and SayMar 6 '12
Sudoku SolverMar 4 '12
Valid SudokuMar 3 '12


Longest Valid ParenthesesMar 1 '12

Substring with Concatenation of All WordsFeb 24 '12
Divide Two IntegersFeb 18 '12
Implement strStr()Feb 18 '12
Remove ElementFeb 16 '12

Reverse Nodes in k-GroupFeb 16 '12


Generate ParenthesesFeb 13 '12
Valid ParenthesesJan 30 '12
Letter Combinations of a Phone Number Jan 27 '12

--start from here:
4SumJan 27 '12

3SumJan 18 '12
Longest Common PrefixJan 17 '12
Roman to IntegerJan 15 '12
Integer to RomanJan 15 '12
Container With Most WaterJan 9 '12
Regular Expression MatchingJan 8 '12

Palindrome NumberJan 4 '12

String to Integer (atoi)Dec 27 '11