Codeforces Round #786 (Div. 3) A. Number Transformation

Posted on   zeitspeed  阅读(13)  评论(0编辑  收藏  举报

time limit per test2 seconds
memory limit per test512 megabytes
inputstandard input
outputstandard output
You are given two integers x and y. You want to choose two strictly positive (greater than zero) integers a and b, and then apply the following operation to x exactly a times: replace x with b⋅x.

You want to find two positive integers a and b such that x becomes equal to y after this process. If there are multiple possible pairs, you can choose any of them. If there is no such pair, report it.

For example:

if x=3 and y=75, you may choose a=2 and b=5, so that x becomes equal to 3⋅5⋅5=75;
if x=100 and y=100, you may choose a=3 and b=1, so that x becomes equal to 100⋅1⋅1⋅1=100;
if x=42 and y=13, there is no answer since you cannot decrease x with the given operations.
Input
The first line contains one integer t (1≤t≤104) — the number of test cases.

Each test case consists of one line containing two integers x and y (1≤x,y≤100).

Output
If it is possible to choose a pair of positive integers a and b so that x becomes y after the aforementioned process, print these two integers. The integers you print should be not less than 1 and not greater than 109 (it can be shown that if the answer exists, there is a pair of integers a and b meeting these constraints). If there are multiple such pairs, print any of them.

If it is impossible to choose a pair of integers a and b so that x becomes y, print the integer 0 twice.

Example
inputCopy
3
3 75
100 100
42 13
outputCopy
2 5
3 1
0 0

#include<iostream>
using namespace std;
int main(void) {
	int n;
	scanf("%d", &n);
	int x, y;
	for (int i = 0; i < n; i++) {
		scanf("%d %d", &x, &y);
		if (y % x != 0) {
			printf("0 0\n");
		}
		else {
			printf("1 %d\n", y / x);
		}
	}
	return 0;
}
相关博文:
阅读排行:
· 分享一个免费、快速、无限量使用的满血 DeepSeek R1 模型,支持深度思考和联网搜索!
· 基于 Docker 搭建 FRP 内网穿透开源项目(很简单哒)
· ollama系列01:轻松3步本地部署deepseek,普通电脑可用
· 25岁的心里话
· 按钮权限的设计及实现
点击右上角即可分享
微信分享提示