6958.Xor Pyramid Diagonal

Time Limit: 1s Memory Limit: 512MB

Consider a xor pyramid where each number is the xor of lower-left and lower-right numbers. Here is an example pyramid:

3194-1.png

Given the bottom row of the pyramid, your task is to find the leftmost number of each row.

Input Format(From the terminal/stdin)

The first line has an integer $n$ : the size of the pyramid.

The next line has $n$ integers $a_1,a_2,\dots,a_n$ : the bottom row of the pyramid.

  • $1 \le n \le 2 \cdot 10^5$
  • $1 \le a_i \le 10^9$

Output Format(To the terminal/stdout)

Print $n$ integers: the leftmost numbers of the rows from bottom to top.

Sample Input

Copy
8
2 10 5 12 9 5 1 5
 \n
 ·  · ·  · · · · \n

Sample Output

Copy
2 8 7 1 11 4 15 9
 · · · ·  · ·  · \n
Source: CSES, Bitwise Operations, 3194

Submit

请先 登录

© 2025 FAQs