My code for Cracking The Coding Interview questions:

3. Stacks and Queues

16.1 NumberSwapper
16.2 Word Frequencies
- Simple version
- Caching words for multiple count requests)
16.3 Intersection
16.4 Tic Tac Win
16.5 Factorial Zeros
16.6 Smallest Difference
16.7 Number Max
16.8 English Int
16.9 Operations
16.10 Living People
16.11 Diving Board
16.12 XML Encoding
16.13 Bitset Squares
16.14 Best Line
16.15 Master Mind
16.16 Sub Sort
16.17 Contiguous Sequence
16.18 Pattern Matching
16.19 Pond Size
16.20 T9
16.21 Sum Swap
16.22 Langton's Ant
16.23 Rand7 and Rand5
16.24 Pair with Sum
16.25 LRU Cache
16.26 Calculator