A14220 | Corrupted Array
时间限制1s
内存限制256MB
通过 / 提交0/0
题目描述
You are given a number $n$ and an array $b_1, b_2, \ldots, b_{n+2}$ , obtained according to the following algorithm:
- some array $a_1, a_2, \ldots, a_n$ was guessed;
- array $a$ was written to array $b$ , i.e. $b_i = a_i$ ( $1 \le i \le n$ );
- The $(n+1)$ -th element of the array $b$ is the sum of the numbers in the array $a$ , i.e. $b_{n+1} = a_1+a_2+\ldots+a_n$ ;
- The $(n+2)$ -th element of the array $b$ was written some number $x$ ( $1 \le x \le 10^9$ ), i.e. $b_{n+2} = x$ ; The
- array $b$ was shuffled.
For example, the array $b=[2, 3, 7, 12 ,2]$ it could be obtained in the following ways:
- $a=[2, 2, 3]$ and $x=12$ ;
- $a=[3, 2, 7]$ and $x=2$ .
For the given array $b$ , find any array $a$ that could have been guessed initially.
- some array $a_1, a_2, \ldots, a_n$ was guessed;
- array $a$ was written to array $b$ , i.e. $b_i = a_i$ ( $1 \le i \le n$ );
- The $(n+1)$ -th element of the array $b$ is the sum of the numbers in the array $a$ , i.e. $b_{n+1} = a_1+a_2+\ldots+a_n$ ;
- The $(n+2)$ -th element of the array $b$ was written some number $x$ ( $1 \le x \le 10^9$ ), i.e. $b_{n+2} = x$ ; The
- array $b$ was shuffled.
For example, the array $b=[2, 3, 7, 12 ,2]$ it could be obtained in the following ways:
- $a=[2, 2, 3]$ and $x=12$ ;
- $a=[3, 2, 7]$ and $x=2$ .
For the given array $b$ , find any array $a$ that could have been guessed initially.
输入格式
The first line contains a single integer $t$ ( $1 \le t \le 10^4$ ). Then $t$ test cases follow.
The first line of each test case contains a single integer $n$ ( $1 \le n \le 2 \cdot 10^5$ ).
The second row of each test case contains $n+2$ integers $b_1, b_2, \ldots, b_{n+2}$ ( $1 \le b_i \le 10^9$ ).
It is guaranteed that the sum of $n$ over all test cases does not exceed $2 \cdot 10^5$ .
The first line of each test case contains a single integer $n$ ( $1 \le n \le 2 \cdot 10^5$ ).
The second row of each test case contains $n+2$ integers $b_1, b_2, \ldots, b_{n+2}$ ( $1 \le b_i \le 10^9$ ).
It is guaranteed that the sum of $n$ over all test cases does not exceed $2 \cdot 10^5$ .
输出格式
For each test case, output:
- "-1", if the array $b$ could not be obtained from any array $a$ ;
- $n$ integers $a_1, a_2, \ldots, a_n$ , otherwise.
If there are several arrays of $a$ , you can output any.
- "-1", if the array $b$ could not be obtained from any array $a$ ;
- $n$ integers $a_1, a_2, \ldots, a_n$ , otherwise.
If there are several arrays of $a$ , you can output any.
输入输出样例
输入 #1
4 3 2 3 7 12 2 4 9 1 7 1 6 5 5 18 2 2 3 2 9 2 3 2 6 9 2 1
输出 #1
2 3 7 -1 2 2 2 3 9 1 2 6
暂无题解
C++ 编辑器
输入
输出
可保存默认模板;新题优先使用已保存模板。
当前快捷键仅展示,暂不支持修改。
- 撤销
Ctrl / ⌘ + Z - 重做
Ctrl / ⌘ + Y - 查找
Ctrl / ⌘ + F - 全选
Ctrl / ⌘ + A - 复制
Ctrl / ⌘ + C - 剪切
Ctrl / ⌘ + X - 粘贴
Ctrl / ⌘ + V - 自动排版
工具栏排版按钮 - 草稿保存
编辑时自动保存到本机
历史
提交记录
状态说明时间源码
AI
作答助手
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。
确定要清空代码吗?
提交通过
评测结果:Accepted