- 7.1 InterconvertStringAndInteger
- 7.2 BaseConversion
- 7.3 SpreadsheetColumnEncoding
- 7.4 ReplaceAndRemove
- 7.5 PalindromeAlphanumeric
- 7.6 ReverseWordsInASentence
- 7.7 ComputeMnemonicsPhoneNumber
- 7.8 LookAndSayProblem
- 7.9 RomanToDecimal
- 7.10 ComputeValidIPAddresses
- 7.11 StringSinusoidal
- 7.12 RunLengthEncoding
- 7.13 FindFirstOccurrenceOfSubstring