Chess Ratings CodeChef Solution | CodeChef Problem Solution 2022

[Solution] Chess Ratings CodeChef Solution | CodeChef Problem Solution 2022

Alice has recently started playing Chess. Her current rating is X$X$. She noticed that when she wins a game, her rating increases by 8$8$ points.

Can you help Alice in finding out the minimum number of games she needs to win in order to make

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 her rating greater than or equal to Y$Y$?

Input Format

• The first line of input will contain an integer T$T$ — the number of test cases. The description of T$T$ test cases follows.
• The first line of each test case contains two integers X$X$ and Y$Y$, as described in the problem statement.

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Output Format

For each test case, output the minimum number of games that Alice needs to win in order to make her rating greater than or equal to Y$Y$.

Constraints

• 1≤T≤104$1\le T\le {10}^4$
• 1≤X≤Y≤104$1\le X\le Y\le {10}^4$