If want to do coding now who can I do for practice.... With input and output

Answer 1

Check out codewars.com - it's a site containing easy to hard challenges in a lot of different languages!

Answer 2

you can also practice on websites like hackerrank, hackerearth, spoj, codechef, codeforces, many such websites.Its good if you starts with hackerrank.com. Happy coding :)