Can someone tell me some websites for programing in c++ who are free

Describe a data structures that supports the stack push and pop operations and a third operation findmin, which returns the smallest element in the data structure, all in o(1) worst-case time.

What is the function of compilers and interpreters? how does a compiler differ from an interpreter?

Write python code that prompts the user to enter his or her favorite color and assigns the user’s input to a variable named color.