P22219 [CodeChef] ADDNDIV
提高-
题目描述

You are given two positive integers a and b. You also have a number x, which is initially set to 0. At first, you can add a to x any number of times. After that, you can divide x by b any number of times as long as x is divisible by b.

Print YES if you can make x equal to 1, otherwise print NO.

------ Input Format ------

  • First line of input will contain T, the number of test cases. Then the test cases follow.
  • Each test case contains a single line, two positive integers a, b.

------ Output Format ------

For each test case, output on one line YES if it is possible to make x , or NO if it is not possible to do so.

Output is case insensitive, which means that "yes", "Yes", "YEs", "no", "nO" - all such strings will be acceptable.

------ Constraints ------

$1 ≤ T ≤ 100000$
$1 ≤ a, b ≤ 10^{9}$

----- Sample Input 1 ------
4
3 10
9 6
7 30
8 12
----- Sample Output 1 ------
NO
YES
NO
YES
----- explanation 1 ------
Test case $2$: We initially have $x$ set to $0$. Add $a = 9$ to $x$ for $4$ times to make $x$ equal to $36$. And then divide $x$ by $b = 6$ for $2$ times to make $x$ equal to $1$.

Test case $4$: We initially have $x$ set to $0$. Add $a = 8$ to $x$ for $18$ times to make $x$ equal to $144$. And then divide $x$ by $b = 12$ for $2$ times to make $x$ equal to $1$.

输入格式

见题面

输出格式

见题面

样例输入
4 3 10 9 6 7 30 8 12
样例输出
NO YES NO YES