Hey jawa, You need to process all activities based on the start time. If you greedily assign activity in the given order, you will fail the following input
Sample Input *1* *4* *1 2* *1 5* *5 6* *2 6* Expected output: *Case #1: CJJC* However, your solution answers *IMPOSSIBLE* -- You received this message because you are subscribed to the Google Groups "Google Code Jam" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-code+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-code/ec715f74-54dc-4a00-9a7a-350848da3dd5%40googlegroups.com.