A13694 | Bitwise Magic
时间限制1s
内存限制256MB
通过 / 提交0/0
题目描述
You are given a positive integer $k$ and an array $a_1, a_2, \ldots, a_n$ of non-negative distinct integers not smaller than $k$ and not greater than $2^c-1$ .
In each of the next $k$ seconds, one element is chosen randomly equiprobably out of all $n$ elements and decreased by $1$ .
For each integer $x$ , $0 \leq x \leq 2^c - 1$ , you need to find the probability that in the end the bitwise XOR of all elements of the array is equal to $x$ .
Each of these values can be represented as an irreducible fraction $\frac{p}{q}$ , and you need to find the value of $p \cdot q^{-1}$ modulo $998\,244\,353$ .
In each of the next $k$ seconds, one element is chosen randomly equiprobably out of all $n$ elements and decreased by $1$ .
For each integer $x$ , $0 \leq x \leq 2^c - 1$ , you need to find the probability that in the end the bitwise XOR of all elements of the array is equal to $x$ .
Each of these values can be represented as an irreducible fraction $\frac{p}{q}$ , and you need to find the value of $p \cdot q^{-1}$ modulo $998\,244\,353$ .
输入格式
The first line of input contains three integers $n, k, c$ ( $1 \leq n \leq (2^c - k)$ , $1 \leq k \leq 16$ , $1 \leq c \leq 16$ ).
The second line contains $n$ distinct integers $a_1, a_2, \ldots, a_n$ ( $k \leq a_i \leq 2^c-1$ ).
The second line contains $n$ distinct integers $a_1, a_2, \ldots, a_n$ ( $k \leq a_i \leq 2^c-1$ ).
输出格式
Print $2^c$ integers: the probability that the bitwise XOR is equal to $x$ in the end for $x$ in $\{0, 1, \ldots, 2^c-1\}$ modulo $998\,244\,353$ .
输入输出样例
输入 #1
4 1 3 1 2 3 4
输出 #1
0 0 0 748683265 0 499122177 0 748683265
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