Codeforces Global Round 7
B
Maximums
Codeforces
900
原题
← AC →
翻译中…

Alicia has an array, $a_1, a_2, \ldots, a_n$, of non-negative integers. For each $1 \leq i \leq n$, she has found a non-negative integer $x_i = max(0, a_1, \ldots, a_{i-1})$. Note that for $i=1$, $x_i = 0$.

翻译中…

For example, if Alicia had the array $a = \{0, 1, 2, 0, 3\}$, then $x = \{0, 0, 1, 2, 2\}$.

翻译中…

Then, she calculated an array, $b_1, b_2, \ldots, b_n$: $b_i = a_i - x_i$.

翻译中…

For example, if Alicia had the array $a = \{0, 1, 2, 0, 3\}$, $b = \{0-0, 1-0, 2-1, 0-2, 3-2\} = \{0, 1, 1, -2, 1\}$.

翻译中…

Alicia gives you the values $b_1, b_2, \ldots, b_n$ and asks you to restore the values $a_1, a_2, \ldots, a_n$. Can you help her solve the problem?

翻译中…

Input

翻译中…

The first line contains one integer $n$ ($3 \leq n \leq 200\,000$) – the number of elements in Alicia's array.

翻译中…

The next line contains $n$ integers, $b_1, b_2, \ldots, b_n$ ($-10^9 \leq b_i \leq 10^9$).

翻译中…

It is guaranteed that for the given array $b$ there is a solution $a_1, a_2, \ldots, a_n$, for all elements of which the following is true: $0 \leq a_i \leq 10^9$.

翻译中…

Output

翻译中…

Print $n$ integers, $a_1, a_2, \ldots, a_n$ ($0 \leq a_i \leq 10^9$), such that if you calculate $x$ according to the statement, $b_1$ will be equal to $a_1 - x_1$, $b_2$ will be equal to $a_2 - x_2$, ..., and $b_n$ will be equal to $a_n - x_n$.

翻译中…

It is guaranteed that there exists at least one solution for the given tests. It can be shown that the solution is unique.

翻译中…

Note

翻译中…

The first test was described in the problem statement.

翻译中…

In the second test, if Alicia had an array $a = \{1000, 1000000000, 0\}$, then $x = \{0, 1000, 1000000000\}$ and $b = \{1000-0, 1000000000-1000, 0-1000000000\} = \{1000, 999999000, -1000000000\}$.

翻译中…

样例

Input #1
5
0 1 1 -2 1
Output #1
0 1 2 0 3
InputCopy OutputCopy
Input #2
3
1000 999999000 -1000000000
Output #2
1000 1000000000 0
InputCopy OutputCopy
Input #3
5
2 1 2 2 3
Output #3
2 3 5 7 10
InputCopy OutputCopy
题目信息
题号
1326B
时间限制
1 s
内存限制
256 MB
标签
模拟
数学

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