A9911. GukiZ and Binary Operations
编程题
普及/提高-
知识点
题目描述
We all know that GukiZ often plays with arrays.
Now he is thinking about this problem: how many arrays $a$ , of length $n$ , with non-negative elements strictly less then $2^{l}$ meet the following condition: ? Here operation  means bitwise AND (in Pascal it is equivalent to and, in C/C++/Java/Python it is equivalent to &), operation  means bitwise OR (in Pascal it is equivalent to , in C/C++/Java/Python it is equivalent to |).
Because the answer can be quite large, calculate it modulo $m$ . This time GukiZ hasn't come up with solution, and needs you to help him!
Now he is thinking about this problem: how many arrays $a$ , of length $n$ , with non-negative elements strictly less then $2^{l}$ meet the following condition: ? Here operation  means bitwise AND (in Pascal it is equivalent to and, in C/C++/Java/Python it is equivalent to &), operation  means bitwise OR (in Pascal it is equivalent to , in C/C++/Java/Python it is equivalent to |).
Because the answer can be quite large, calculate it modulo $m$ . This time GukiZ hasn't come up with solution, and needs you to help him!
输入格式
First and the only line of input contains four integers $n$ , $k$ , $l$ , $m$ ( $2<=n<=10^{18}$ , $0<=k<=10^{18}$ , $0<=l<=64$ , $1<=m<=10^{9}+7$ ).
输出格式
In the single line print the number of arrays satisfying the condition above modulo $m$ .
输入输出样例
输入 #1
2 1 2 10
输出 #1
3
输入 #2
2 1 1 3
输出 #2
1
输入 #3
3 3 2 10
输出 #3
9
说明/提示
In the first sample, satisfying arrays are ${1,1},{3,1},{1,3}$ .
In the second sample, only satisfying array is ${1,1}$ .
In the third sample, satisfying arrays are ${0,3,3},{1,3,2},{1,3,3},{2,3,1},{2,3,3},{3,3,0},{3,3,1},{3,3,2},{3,3,3}$ .
In the second sample, only satisfying array is ${1,1}$ .
In the third sample, satisfying arrays are ${0,3,3},{1,3,2},{1,3,3},{2,3,1},{2,3,3},{3,3,0},{3,3,1},{3,3,2},{3,3,3}$ .