Capital One Senoir Software Engineer interview questions

The third one was about converting the variable names from snake case to camel case, without affecting constant names. That is, you are given a function comment which contain identifiers for constants, variables and functions enclosed in backticks. All of them are in snake case, i.e., alphanumeric segments with underscores in between. The constant names are all in upper case. The task is to convert function/var names alone to camel case, i.e., every new word begins with upper case, no underscores.

Leetcode Count primes, looking for optimal solution