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A12226 | Meme Problem

时间限制1s
内存限制256MB
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题目描述

Try guessing the statement from this picture:

![](/uploads/acgo/image/d1438995f07289d2_0e01a05d1a2d.jpeg)You are given a non-negative integer $d$ . You have to find two non-negative real numbers $a$ and $b$ such that $a + b = d$ and $a \cdot b = d$ .

输入格式

The first line contains $t$ ( $1 \le t \le 10^3$ ) — the number of test cases.

Each test case contains one integer $d$ $(0 \le d \le 10^3)$ .

输出格式

For each test print one line.

If there is an answer for the $i$ -th test, print "Y", and then the numbers $a$ and $b$ .

If there is no answer for the $i$ -th test, print "N".

Your answer will be considered correct if $|(a + b) - a \cdot b| \le 10^{-6}$ and $|(a + b) - d| \le 10^{-6}$ .

输入输出样例

输入 #1
7
69
0
1
4
5
999
1000
输出 #1
Y 67.985071301 1.014928699
Y 0.000000000 0.000000000
N
Y 2.000000000 2.000000000
Y 3.618033989 1.381966011
Y 997.998996990 1.001003010
Y 998.998997995 1.001002005
C++ 编辑器
输入
输出