A12977 | $Obtain Two Zeroes$

时间限制1s

内存限制256MB

通过 / 提交0/0

题目描述

You are given two integers $a$ and $b$ . You may perform any number of operations on them (possibly zero). During each operation you should choose any positive integer $x$ and set $a := a - x$ , $b := b - 2x$ or $a := a - 2x$ , $b := b - x$ . Note that you may choose different values of $x$ in different operations. Is it possible to make $a$ and $b$ equal to $0$ simultaneously? Your program should answer $t$ independent test cases.

The first line contains one integer $t$ ( $1 \le t \le 100$ ) — the number of test cases. Then the test cases follow, each test case is represented by one line containing two integers $a$ and $b$ for this test case ( $0 \le a, b \le 10^9$ ).

For each test case print the answer to it — YES if it is possible to make $a$ and $b$ equal to $0$ simultaneously, and NO otherwise. You may print every letter in any case you want (so, for example, the strings yEs, yes, Yes and YES will all be recognized as positive answer).

输入 #1

输出 #1

YES
NO
YES

C++ 编辑器

输入

输出