luogu#P5014. 水の三角(修改版)

水の三角(修改版)

Background

This triangular diagram looks really nice.

This is a 4{\rm 4}-order triangular diagram.

Problem Description

Now we define a triangular diagram as shown above.

Please find the number of ways to walk from node 11 to node uu in an infinitely large triangular diagram.

There are TT queries.

Input Format

The first line contains a positive integer TT.

The second line contains TT positive integers uiu_i.

Output Format

Output TT lines, each containing a positive integer, which is the answer modulo 998244353998244353.

3
1 3 6

1
2
6

Hint

Subtask 1(10 pts){\rm Subtask\ 1(10\ pts)}: 1T100,1ui551 \leq T \leq 100, \qquad 1 \leq u_i \leq 55.

Subtask 2(20 pts){\rm Subtask\ 2(20\ pts)}: 1T100,1ui125025001 \leq T \leq 100, \qquad 1 \leq u_i \leq 12502500.

Subtask 3(30 pts){\rm Subtask\ 3(30\ pts)}: $1 \leq T \leq 100, \qquad 1 \leq u_i \leq 500000500000, \qquad u_i=\frac{x \times (x + 1)}{2}$.

Subtask 4(40 pts){\rm Subtask\ 4(40\ pts)}: $1 \leq T \leq 100, \qquad 1 \leq u_i \leq 500000500000$.

Translated by ChatGPT 5