风华绝代

Problem 2139 久违的月赛之二 Accept: 40    Submit: 98 Time Limit: 1000 mSec    Memory Limit : 32768 KB  Problem Description 好久没举办月赛了，这次lqw又给大家出了5道题，因为hsy学长宣传的很到位，吸引了n个DDMM们来做，另一位kk学长说，全做对的要给金奖，做对4

B. Party time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output n people came to a party. Then those, who had no f