Home > Backend Development > PHP Tutorial > php-面试题,用最少的迭代,使数组所有元素变换为平均值(平衡)

php-面试题,用最少的迭代,使数组所有元素变换为平均值(平衡)

WBOY
Release: 2016-06-02 11:33:55
Original
1159 people have browsed it

php面试题算法数组

输入:数组,所有值为非负整数
目标:通过变换使数组的每个值为所有值的平均值,并且迭代次数最少
变换方法:某个值自身减一,使其紧邻左边或紧邻右边的值加一。数组第一个值只能向右传递1,最后一个向左传递1. 变换过程中数组内所有值不可为负。
例1:
输入 : [0, 3, 3]
第一次: [1, 2, 3] [1, 3, 2]
第二次: [2, 2, 2]
例2
[2, 4, 6, 2, 1]
[3, 3, 5, 2, 2]
[3, 3, 4, 2, 3]
[3, 3, 3, 3, 3]
例3
[1, 0, 7, 0]
[1, 1, 6, 0]
[2, 1, 5, 0]
[2, 2, 4, 0]
[2, 2, 3, 1]
[2, 2, 2, 2]
这个问题有什么好的算法解决吗,例子不是唯一解。求思路,用php实现。

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template