①处应填( )
now<maxnum
now>=maxnum
now<=maxnum
now>maxnum
②处应填()
second-first
second
first-second
second-ans
③处应填()
ans-1
ans-delta
ans
ans-first
④处应填()
hash [first] >ans
hash [first]>=ans
hash[second]<=ans
hash[second] <ans
⑤处应填()
0
(!ok)
1
ok
⑥处应填()
work(0)
work(0)<=0
work(ans)
(!work(ans))
发表评论