Today I have Faced an Unusual problem ..... I have Submitted 2 Solution in Today's Contest DIV — 2. While contest is Running It shows Those twos are AC . But After a while I have seen that My Submission are Skipped ? ? And It shows I didn't register myself into the Contest .. Then How can I submitted those code at Contest Time ?

My Submission : ( Problem B ) http://mirror.codeforces.com/contest/579/submission/13042381

( Problem A ) http://mirror.codeforces.com/contest/579/submission/13038018

Why I have faced this Problem ??