Write an Android application

Project: Running a weekly games competition at a bar. Need to create a leaderboard point system. Preferably create a website for users to enter, sign in with Facebook or Google or create account. Each night will be it's own competition with players receiving points for attending, winning and placing between #1-10. Competition results are displayed at the end of the night. To enter a competition users must receive a special code to register for the comp on the night. Points are accumulated on a total score public leaderboard. Person with the most points at the end of the month receives a prize. Points reset at the end of the month.