2869. Cow Line

单点时限: 2.0 sec

内存限制: 256 MB





The N (1 <= N <= 20) cows conveniently numbered 1...N are playing

yet another one of their crazy games with Farmer John. The cows

will arrange themselves in a line and ask Farmer John what their

line number is. In return, Farmer John can give them a line number

and the cows must rearrange themselves into that line.

A line number is assigned by numbering all the permutations of the

line in lexicographic order.

Consider this example:

Farmer John has 5 cows and gives them the line number of 3.

The permutations of the line in ascending lexicographic order:

1st: 1 2 3 4 5

2nd: 1 2 3 5 4

3rd: 1 2 4 3 5

Therefore, the cows will line themselves in the cow line 1 2 4 3 5.

The cows, in return, line themselves in the configuration "1 2 5 3 4" and

ask Farmer John what their line number is.

Continuing with the list:

4th : 1 2 4 5 3

5th : 1 2 5 3 4

Farmer John can see the answer here is 5

Farmer John and the cows would like your help to play their game.

They have K (1 <= K <= 10,000) queries that they need help with.

Query i has two parts: C_i will be the command, which is either 'P'

or 'Q'.

If C_i is 'P', then the second part of the query will be one integer

A_i (1 <= A_i <= N!), which is a line number. This is Farmer John

challenging the cows to line up in the correct cow line.

If C_i is 'Q', then the second part of the query will be N distinct

integers B_ij (1 <= B_ij <= N). This will denote a cow line. These are the

cows challenging Farmer John to find their line number.

输入格式







* Line 1: Two space-separated integers: N and K

* Lines 2..2*K+1: Line 2*i and 2*i+1 will contain a single query.

Line 2*i will contain just one character: 'Q' if the cows are lining

up and asking Farmer John for their line number or 'P' if Farmer

John gives the cows a line number.

If the line 2*i is 'Q', then line 2*i+1 will contain N space-separated

integers B_ij which represent the cow line. If the line 2*i is 'P',

then line 2*i+1 will contain a single integer A_i which is the line

number to solve for.

输出格式





* Lines 1..K: Line i will contain the answer to query i.

If line 2*i of the input was 'Q', then this line will contain a

single integer, which is the line number of the cow line in line

2*i+1.

If line 2*i of the input was 'P', then this line will contain N

space separated integers giving the cow line of the number in line

2*i+1.

样例

Input
5 2
P
3
Q
1 2 5 3 4
Output
1 2 4 3 5
5

2 人解决,8 人已尝试。

2 份提交通过,共有 30 份提交。

9.6 EMB 奖励。

创建: 8 年,10 月前.

修改: 2 年,5 月前.

最后提交: 1 年,11 月前.

来源: USACO 2011 FEB SILVER

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