P15765 [CodeChef] XOMMON
提高
题目描述

Given an array of n$n$ integers : A1,A2,...,An$ A_1, A_2,... , A_n$, find the longest size subsequence which satisfies the following property: The xor of adjacent integers in the subsequence must be non-decreasing.

-----Input:-----
- First line contains an integer n$n$, denoting the length of the array.
- Second line will contain n$n$ space separated integers, denoting the elements of the array.

-----Output:-----
Output a single integer denoting the longest size of subsequence with the given property.

-----Constraints-----
- 1≤n≤103$1 \leq n \leq 10^3$
- 0≤Ai≤1018$0 \leq A_i \leq 10^{18}$

-----Sample Input:-----
8
1 200 3 0 400 4 1 7

-----Sample Output:-----
6

-----EXPLANATION:-----
The subsequence of maximum length is {1, 3, 0, 4, 1, 7} with Xor of adjacent indexes as {2,3,4,5,6} (non-decreasing)

输入格式

见题面

输出格式

见题面

样例输入
['8', '1 200 3 0 400 4 1 7']
样例输出
['6']