P24432 [AtCoder] Substring Sort
NOI
题目描述

Problem Statement

You are given $N strings S_1,S_2,\ldots, S_N$.
Let $M = \displaystyle\sum_{i=1}^N \frac{|S_i|(|S_i|+1)}{2}$.
For a string S and integers L and R, let us denote by S[L, R] the substring consisting of the L-th through R-th characters of S.
A sequence of triples of integers $((K_1, L_1, R_1), (K_2, L_2, R_2), \ldots, (K_M, L_M, R_M))$ of length M satisfies the following conditions:

  • The M elements are pairwise distinct.
  • For all $1 \leq i \leq M$, it holds that $1 \leq K_i \leq N$ and $1 \leq L_i \leq R_i \leq |S_{K_i}|$.
  • For all $1 \leq i \leq j \leq M$, it holds that $S_{K_i}[L_i, R_i] \leq S_{K_j}[L_j, R_j]$ in the lexicographical order.

You are given $Q integers x_1,x_2,\ldots, x_Q between 1$ and M, inclusive. For each $1 \leq i \leq Q, find a$ possible instance of (K_{x_i}, L_{x_i}, R_{x_i}). We can prove that there always exists a sequence of triples that satisfies the conditions. If multiple triples satisfy the conditions, print any of them. In addition, among different x_i's, the conforming sequence of triples does not have to be common.

What is the lexicographical order?
Two strings S and T are said to be $S \leq T$ in the lexicographical order if and only if one of the following conditions is satisfied:

  • $|S| \leq |T|$ and S = T[1, |S|].
  • There exists $1\leq k\leq \min(|S|, |T|)$ such that the i-th characters of S and T are the same for all $1\leq i\leq k-1$, and the k-th character of S is alphabetically strictly smaller than that of T.

Input

The input is given from Standard Input in the following format:
N
S_1
S_2
$\vdots$
S_N
Q
$x_1 x_2 \ldots x_Q$

Output

Print Q lines. The i-th line should contain an instance of conforming (K_{x_i}, L_{x_i}, R_{x_i}), separated by spaces.
If multiple triples satisfy the conditions, print any of them.

Constraints

  • $1 \leq N \leq 10^5$
  • $1 \leq \lvert S_i\rvert \leq 10^5$
  • $\displaystyle\sum_{i=1}^N \lvert S_i\rvert\leq 10^5$
  • $1 \leq Q \leq 2\times 10^5$
  • $1 \leq x_1<x_2<\cdots<x_Q \leq \displaystyle\sum_{i=1}^N \frac{|S_i|(|S_i|+1)}{2}$
  • $N,Q,x_1,x_2,\ldots,x_Q$ are integers.
  • S_i is a string consisting of lowercase English letters.

Sample Input 1

2
abab
cab
2
5 14

Sample Output 1

1 3 4
2 1 1

We have M=16. One possible sequence of triples that satisfies the conditions is
((1,1,1), (1,3,3), (2,2,2), (1,1,2), (1,3,4), (2,2,3), (1,1,3), (1,1,4), (1,2,2), (1,4,4), (2,3,3), (1,2,3), (1,2,4), (2,1,1), (2,1,2), (2,1,3)).
The corresponding sequence of S_{K_i}[L_i, R_i] for these (K_i,L_i, R_i) in this order is (a, a, a, ab, ab, ab, aba, abab, b, b, b, ba, bab, c, ca, cab).
Note that the sequence satisfies the conditions even if we swap the 5-th element (1,3,4) with the 4-th or 6-th one,
so (K_{x_1}, L_{x_1}, R_{x_1})=(1,1,2), (2,2,3) will also be accepted.

Sample Input 2

3
a
a
ba
2
1 2

Sample Output 2

1 1 1
1 1 1

We have M=5. The sequence of triples that satisfies the conditions can be
(1,1,1), (2,1,1), (3,2,2), (3,1,1), (3,1,2) or (2,1,1), (3,2,2), (1,1,1), (3,1,1), (3,1,2),
for example.
Note that, for (K_{x_i}, L_{x_i}, R_{x_i}) that you print, the conforming sequence whose x_i-th element is (K_{x_i}, L_{x_i}, R_{x_i}) does not have to be common among different i;
in other words, there does not necessarily have to exist a sequence
whose "x_i-th element is (K_{x_i}, L_{x_i}, R_{x_i}) for all $1\leq i\leq Q$."

Sample Input 3

10
gxgpuamkx
szhkbpphykin
ezplvfja
mopodotkrj
rimlvumuar
nexcfyce
eurgvjyos
dhvuyfvt
nrdyluacvra
ggwnpnzij
6
74 268 310 380 455 489

Sample Output 3

3 1 2
4 4 5
4 3 7
9 6 6
6 6 6
2 2 12

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
2 abab cab 2 5 14
样例输出
1 3 4 2 1 1