I was unable to solve this problem during the contest and after i was going through the submissions.so,i found this code which is coded by @dreamoon4 who is ranked 1 in this contest but i am unable to understand his code.Can anyone explain me what does he mean from the following statement . REP(i,pn){ int tmp=max(sum[i]%2,ma[i]2sum[i]); REP(j,tmp)an=(anpp[i])%MOD; } asked 27 Apr '14, 15:49

i checked his result it is absolutely true but how can one arrive at such result. answered 27 Apr '14, 16:04
