Here are some questions which was put up by me in as part of tech fest conducted in the college
https://www.hackerearth.com/cextreme16
https://www.hackerearth.com/codextreme_2k16
https://www.hackerrank.com/contests/codextreme2k15/challenges
https://www.hackerrank.com/contests/cxtr1/challenges
https://www.hackerearth.com/cextreme16
https://www.hackerearth.com/codextreme_2k16
https://www.hackerrank.com/contests/codextreme2k15/challenges
https://www.hackerrank.com/contests/cxtr1/challenges