题目描述
Chef hosts a party for his birthday. There are N people at the party. All these N people decide to play Jenga.
There are X Jenga tiles available. In one round, all the players pick 1 tile each and place it in the tower.
The game is valid if:
All the players have a tile in each round;
All the tiles are used at the end.
Given N and X, find whether the game is valid.
------ Input Format ------
- First line will contain T, the number of test cases. Then the test cases follow.
- Each test case contains a single line of input, containing two space-separated integers N and X representing the number of people at the party and the number of available tiles respectively.
------ Output Format ------
For each test case, output in $a single line \texttt{YES}$ if the game is valid, else output $\texttt{NO}$.
You may print each character of the string in uppercase or lowercase (for example, the strings $\texttt{YeS}, \texttt{yEs}, \texttt{yes}$ and $\texttt{YES}$ will all be treated as identical).
------ Constraints ------
$1 ≤ T ≤ 10^{4}$
$1 ≤ N, X ≤ 1000$
----- Sample Input 1 ------
3
3 3
4 2
2 4
----- Sample Output 1 ------
YES
NO
YES
----- explanation 1 ------
Test case $1$: The game will last for $1$ round after which the tiles will finish.
Test case $2$: There are not enough Jenga tiles for everyone to place.
Test case $3$: The game will last for $2$ rounds as after round $2$ all Jenga tiles are used.
输入格式
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输出格式
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