I will have a look at it ... thanks for the help :)
I would suggest HackerRank and Programming Tutorials, Coding Problems and Practice Questions
These two Online judges have a very good practice section. There are many others but these two are better for beginners as you get problems that are classified topic wise and can be filtered based on the level of difficulty.
The problem is not accessible. When I tried to open the contest page I get the below message. Its happening since last two days.
You will have to login to check the contents on INOI Practice Contest contest page.
Note: This is a restricted contest. It will only be accessible to users who are provided the permission. In case of any queries, please get in touch with the contest organizer.