A12045 | Restore Array
时间限制1s
内存限制256MB
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题目描述
While discussing a proper problem A for a Codeforces Round, Kostya created a cyclic array of positive integers $a_1, a_2, \ldots, a_n$ . Since the talk was long and not promising, Kostya created a new cyclic array $b_1, b_2, \ldots, b_{n}$ so that $b_i = (a_i \mod a_{i + 1})$ , where we take $a_{n+1} = a_1$ . Here $mod$ is the [modulo operation](https://en.wikipedia.org/wiki/Modulo_operation). When the talk became interesting, Kostya completely forgot how array $a$ had looked like. Suddenly, he thought that restoring array $a$ from array $b$ would be an interesting problem (unfortunately, not A).
输入格式
The first line contains a single integer $n$ ( $2 \le n \le 140582$ ) — the length of the array $a$ .
The second line contains $n$ integers $b_1, b_2, \ldots, b_{n}$ ( $0 \le b_i \le 187126$ ).
The second line contains $n$ integers $b_1, b_2, \ldots, b_{n}$ ( $0 \le b_i \le 187126$ ).
输出格式
If it is possible to restore some array $a$ of length $n$ so that $b_i = a_i \mod a_{(i \mod n) + 1}$ holds for all $i = 1, 2, \ldots, n$ , print «YES» in the first line and the integers $a_1, a_2, \ldots, a_n$ in the second line. All $a_i$ should satisfy $1 \le a_i \le 10^{18}$ . We can show that if an answer exists, then an answer with such constraint exists as well.
It it impossible to restore any valid $a$ , print «NO» in one line.
You can print each letter in any case (upper or lower).
It it impossible to restore any valid $a$ , print «NO» in one line.
You can print each letter in any case (upper or lower).
输入输出样例
输入 #1
4 1 3 1 0
输出 #1
YES 1 3 5 2
输入 #2
2 4 4
输出 #2
NO
In the first example:
- $1 \mod 3 = 1$
- $3 \mod 5 = 3$
- $5 \mod 2 = 1$
- $2 \mod 1 = 0$
- $1 \mod 3 = 1$
- $3 \mod 5 = 3$
- $5 \mod 2 = 1$
- $2 \mod 1 = 0$
C++ 编辑器
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输出
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你好,我是作答助手。可以问思路、复杂度、样例含义或代码报错原因;不会直接给出完整 AC 代码。
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评测结果:Accepted