CSnerd questions

• Are Promise.resolve and new Promise(resolve) interchangeable
• dynamic programming for minimum cost of breaking the string
• Why's type lattice in Scala?
• Difference between Array and List initialization in Scala
• Use overloading judiciously
• Reverse Integer leetcode -- how to handle overflow
• Why does Haskell use arrows for the type of a function?
• Contravariance vs Covariance in Scala
• Difference between write() and printf()
• Single Number II from leetcode

CSnerd answers