All these programs are for learning concepts of programming, JS & also I am adding interview asked questions as well.

dir codechef has the programming questions solved on Codechef.

dir Cpp Prog has the programming questions & algos in c/cpp.

dir hackerearth has the programming questions solved on hackerearth.

dir Js Prog has the questions and concepts of Js as well as Javascript Interview questions.

dir Python Prog has the questions solved in python language.