The following 4 sets have same code, some of them have "intelligently" copied though: 1. http://www.codechef.com/viewsolution/2505301 and http://www.codechef.com/viewsolution/2510050 2. http://www.codechef.com/viewsolution/2525858 and http://www.codechef.com/viewsolution/2523949 3. http://www.codechef.com/viewsolution/2472743 and http://www.codechef.com/viewsolution/2524690 4. http://www.codechef.com/viewsolution/2463042 and http://www.codechef.com/viewsolution/2463433
I am not sure of any change in cheating policy in last 2 months and so I thought I should report the cases I know of.