CF914G.Sum the Fibonacci
普及/提高-
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题目描述
You are given an array s of n non-negative integers.
A 5-tuple of integers (a,b,c,d,e) is said to be valid if it satisfies the following conditions:
- 1<=a,b,c,d,e<=n
- (sa | sb) & sc & (sd ^ se)=2i for some integer i
- sa & sb=0
Here, '|' is the bitwise OR, '&' is the bitwise AND and '^' is the bitwise XOR operation.
Find the sum of f(sa | sb)∗f(sc)∗f(sd ^ se) over all valid 5-tuples (a,b,c,d,e) , where f(i) is the i -th Fibonnaci number ( f(0)=0,f(1)=1,f(i)=f(i−1)+f(i−2) ).
Since answer can be is huge output it modulo 109+7 .
输入格式
The first line of input contains an integer n ( 1<=n<=106 ).
The second line of input contains n integers si ( 0<=si<217 ).
输出格式
Output the sum as described above, modulo 109+7
输入输出样例
输入#1
2 1 2
输出#1
32
输入#2
3 7 4 1
输出#2
3520
输入#3
10 1 3 0 7 3 7 6 5 7 5
输出#3
1235424
输入#4
10 50 9 11 44 39 40 5 39 23 7
输出#4
113860062