EDUCATION.WEB
Different Competitive Programming Sites
1.Code vita
https://campuscommune.tcs.com/en-in/intro/contests
2.GOOGLE::kickstart
https://codingcompetitions.withgoogle.com/kickstart
3.Topcoder::Proceed by increasing problem levels gradaully
https://www.topcoder.com/community/competitive-programming/
4.Codeforces::List of Problem Sets
https://codeforces.com/
5.Codechef::Beginners can start with Codechef Begineers and proceed further
https://www.codechef.com/
6.SPOJ(Sphere Online Judge)::Move from easy to tough problems
https://www.spoj.com/
7.Hackerrank::Practice problems topic wise and participate in preparatory series
https://www.hackerrank.com/
8.Hackerearth::Participate in preparatory series
https://www.hackerearth.com/