245 人解决,576 人已尝试。
257 份提交通过,共有 2116 份提交。
4.4 EMB 奖励。
单点时限: 2.0 sec
内存限制: 512 MB
Amuzi
is going to play a game with sets.
Firstly, he has a set $A={1,2,3,\dots,n}$ and 2 empty sets $B$ and $C$. He will put some elements in $A$ into $B$ (Note that each element in $A$ will be chosen no more than once). After that, for $\forall x,y\in B$ , he will put $(x-y)$ into $C$.
Amuzi
doesn’t like the number $5$ and $8$, so he doesn’t want these two numbers to be in $C$.
Now Amuzi
wants to maximize the size of $B$, can you tell him the maximum size of $B$?
The first line contains one integer $T(1\leq T\leq 10^5)$ indicating the number of cases.
For the next $T$ lines, each line contains one integer $n(1\leq n\leq 10^9)$ indicating one case.
For each case, output one integer in one line indicating the answer.
3 3 6 9
3 5 5
245 人解决,576 人已尝试。
257 份提交通过,共有 2116 份提交。
4.4 EMB 奖励。