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Divisible Numbers (easy version)

4000ms 262144K

Description:

This is an easy version of the problem. The only difference between an easy and a hard version is the constraints on $$$a$$$, $$$b$$$, $$$c$$$ and $$$d$$$.

You are given $$$4$$$ positive integers $$$a$$$, $$$b$$$, $$$c$$$, $$$d$$$ with $$$a < c$$$ and $$$b < d$$$. Find any pair of numbers $$$x$$$ and $$$y$$$ that satisfies the following conditions:

  • $$$a < x \leq c$$$, $$$b < y \leq d$$$,
  • $$$x \cdot y$$$ is divisible by $$$a \cdot b$$$.

Note that required $$$x$$$ and $$$y$$$ may not exist.

Input:

The first line of the input contains a single integer $$$t$$$ $$$(1 \leq t \leq 10$$$), the number of test cases.

The descriptions of the test cases follow.

The only line of each test case contains four integers $$$a$$$, $$$b$$$, $$$c$$$ and $$$d$$$ ($$$1 \leq a < c \leq 10^5$$$, $$$1 \leq b < d \leq 10^5$$$).

Output:

For each test case print a pair of numbers $$$a < x \leq c$$$ and $$$b < y \leq d$$$ such that $$$x \cdot y$$$ is divisible by $$$a \cdot b$$$. If there are multiple answers, print any of them. If there is no such pair of numbers, then print -1 -1.

Sample Input:

5
1 1 2 2
3 4 5 7
8 9 15 18
12 21 14 24
36 60 48 66

Sample Output:

2 2
4 6
12 12
-1 -1
-1 -1

Informação

Codeforces

Provedor Codeforces

Código CF1744E1

Tags

brute forcemathnumber theory

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Datas 09/05/2023 10:33:06

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