Codeforces Round 818 (Div. 2)
C
Madoka and Formal Statement
Codeforces
1300
原题
← BD →
翻译中…

Given an array of integer $a_1, a_2, \ldots, a_n$. In one operation you can make $a_i := a_i + 1$ if $i \lt n$ and $a_i \leq a_{i + 1}$, or $i = n$ and $a_i \leq a_1$.

翻译中…

You need to check whether the array $a_1, a_2, \ldots, a_n$ can become equal to the array $b_1, b_2, \ldots, b_n$ in some number of operations (possibly, zero). Two arrays $a$ and $b$ of length $n$ are called equal if $a_i = b_i$ for all integers $i$ from $1$ to $n$.

翻译中…

Input

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The input consists of multiple test cases. The first line contains a single integer $t$ ($1 \le t \le 4 \cdot 10^4$) — the number of test cases. Description of the test cases follows.

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The first line of each test case contains a single integer $n$ ($2 \le n \le 2 \cdot 10^5$) – the length of the array.

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The second line of each test case contains $n$ integers $a_1, \ldots, a_n$ ($1 \le a_i \le 10^9$) – the elements of the array $a$.

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The third line of each test case contains $n$ integers $b_1, \ldots, b_n$ ($1 \le b_i \le 10^9$) – the elements of the array $b$.

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It is guaranteed that the sum of $n$ over all test cases does not exceed $2 \cdot 10^5$.

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Output

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For each test case, output "YES" if you can get the array $b$, otherwise output "NO".

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You may print each letter in any case (for example, "YES", "Yes", "yes", "yEs" will all be recognized as positive answer).

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Note

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In the first test case, the array $a$ is already equal to the array $b$.

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In the second test case, we can't get the array $b$, because to do this we need to decrease $a_1$.

翻译中…

In the fifth test case, we can apply operations in order to the elements with indices $4, 3, 3,2,2,2,1,1,1,1$, and then get the array $[5,5,5,5,5]$. After that, you can apply operations in order to elements with indices $5,4,4,3,1$ and already get an array $[6,5,6,7,6]$.

翻译中…

样例

Input #1
5
3
1 2 5
1 2 5
2
2 2
1 3
4
3 4 1 2
6 4 2 5
3
2 4 1
4 5 3
5
1 2 3 4 5
6 5 6 7 6
Output #1
YES
NO
NO
NO
YES
InputCopy OutputCopy
题目信息
题号
1717C
时间限制
1 s
内存限制
256 MB
标签
贪心

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