#P3515. [POI2011] Lightning Conductor
[POI2011] Lightning Conductor
题目描述
Progressive climate change has forced the Byteburg authorities to build a huge lightning conductor that would protect all the buildings within the city.
These buildings form a row along a single street, and are numbered from to .
The heights of the buildings and the lightning conductor are non-negative integers.
Byteburg's limited funds allow construction of only a single lightning conductor.
Moreover, as you would expect, the higher it will be, the more expensive.
The lightning conductor of height located on the roof of the building (of height ) protects the building (of height ) if the following inequality holds:
where denotes the absolute value of the difference between and .
Byteasar, the mayor of Byteburg, asks your help.
Write a program that, for every building , determines the minimum height of a lightning conductor that would protect all the buildings if it were put on top of the building .
输入格式
In the first line of the standard input there is a single integer () that denotes the number of buildings in Byteburg.
Each of the following lines holds a single integer () that denotes the height of the -th building.
输出格式
Your program should print out exactly lines to the standard output.
The -th line should give a non-negative integer denoting the minimum height of the lightning conductor on the -th building.
题目大意
给定一个长度为 的序列 ,对于每个 ,求出一个最小的非负整数 ,使得 ,都有
, 。
6
5
3
2
4
2
4
2
3
5
3
5
4