Untitled123 questions

Untitled123 answers

• Generate x+xx+xxx+xxxx ... for a given integer (for 4 -> 4+44+444...)
• Dynamically varying number of nested for loops
• do...while() repeating the last string twice
• Raising to powers in C++ vs. Python
• How to speed up Sieve of Eratosthenes python list generator
• Best way to open and return a database connection in a Java application?
• Check whitespaces and isempty