A14463 | Plus and Multiply
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题目描述
There is an infinite set generated as follows:
- $1$ is in this set.
- If $x$ is in this set, $x \cdot a$ and $x+b$ both are in this set.
For example, when $a=3$ and $b=6$ , the five smallest elements of the set are:
- $1$ ,
- $3$ ( $1$ is in this set, so $1\cdot a=3$ is in this set),
- $7$ ( $1$ is in this set, so $1+b=7$ is in this set),
- $9$ ( $3$ is in this set, so $3\cdot a=9$ is in this set),
- $13$ ( $7$ is in this set, so $7+b=13$ is in this set).
Given positive integers $a$ , $b$ , $n$ , determine if $n$ is in this set.
- $1$ is in this set.
- If $x$ is in this set, $x \cdot a$ and $x+b$ both are in this set.
For example, when $a=3$ and $b=6$ , the five smallest elements of the set are:
- $1$ ,
- $3$ ( $1$ is in this set, so $1\cdot a=3$ is in this set),
- $7$ ( $1$ is in this set, so $1+b=7$ is in this set),
- $9$ ( $3$ is in this set, so $3\cdot a=9$ is in this set),
- $13$ ( $7$ is in this set, so $7+b=13$ is in this set).
Given positive integers $a$ , $b$ , $n$ , determine if $n$ is in this set.
输入格式
The input consists of multiple test cases. The first line contains an integer $t$ ( $1\leq t\leq 10^5$ ) — the number of test cases. The description of the test cases follows.
The only line describing each test case contains three integers $n$ , $a$ , $b$ ( $1\leq n,a,b\leq 10^9$ ) separated by a single space.
The only line describing each test case contains three integers $n$ , $a$ , $b$ ( $1\leq n,a,b\leq 10^9$ ) separated by a single space.
输出格式
For each test case, print "Yes" if $n$ is in this set, and "No" otherwise. You can print each letter in any case.
输入输出样例
输入 #1
5 24 3 5 10 3 6 2345 1 4 19260817 394 485 19260817 233 264
输出 #1
Yes No Yes No Yes
In the first test case, $24$ is generated as follows:
- $1$ is in this set, so $3$ and $6$ are in this set;
- $3$ is in this set, so $9$ and $8$ are in this set;
- $8$ is in this set, so $24$ and $13$ are in this set.
Thus we can see $24$ is in this set.
The five smallest elements of the set in the second test case is described in statements. We can see that $10$ isn't among them.
- $1$ is in this set, so $3$ and $6$ are in this set;
- $3$ is in this set, so $9$ and $8$ are in this set;
- $8$ is in this set, so $24$ and $13$ are in this set.
Thus we can see $24$ is in this set.
The five smallest elements of the set in the second test case is described in statements. We can see that $10$ isn't among them.
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评测结果:Accepted