We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
分治法典型应用,分治算法思想很大程度上是基于递归的,也比较适合用递归来实现。
处理过程是由下到上的,先处理子问题,然后再合并。
如果感觉自己对递归掌握的还不是很透彻的同学,可以移步我的这篇专栏你真的懂递归吗?。
顾名思义,分而治之。一般分为以下三个过程:
归并排序就是将待排序数组不断二分为规模更小的子问题处理,再将处理好的子问题合并起来,这样整个数组就都有序了。
const mergeSort = function(arr) { const merge = (right, left) => { const result = [] let i = 0, j = 0 while (i < left.length && j < right.length) { if (left[i] < right[j]) { result.push(left[i++]) } else { result.push(right[j++]) } } while (i < left.length) { result.push(left[i++]) } while (j < right.length) { result.push(right[j++]) } return result } const sort = (arr) => { if (arr.length === 1) { return arr } const mid = Math.floor(arr.length / 2) const left = arr.slice(0, mid) const right = arr.slice(mid, arr.length) return merge(mergeSort(left), mergeSort(right)) } return sort(arr) }
The text was updated successfully, but these errors were encountered:
No branches or pull requests
分治法典型应用,分治算法思想很大程度上是基于递归的,也比较适合用递归来实现。
处理过程是由下到上的,先处理子问题,然后再合并。
如果感觉自己对递归掌握的还不是很透彻的同学,可以移步我的这篇专栏你真的懂递归吗?。
顾名思义,分而治之。一般分为以下三个过程:
归并排序就是将待排序数组不断二分为规模更小的子问题处理,再将处理好的子问题合并起来,这样整个数组就都有序了。
The text was updated successfully, but these errors were encountered: