This blog post was written for the Lockheed Martin Insight blog, sharing here for the external audience. Last month I started the Pluralsight summer camp by watching an interesting video in which the presenter implements Conway's Game of Life using H…
Author: Emmanuel Goossaert 翻译 This article is a short guide to implementing an algorithm from a scientific paper. I have implemented many complex algorithms from books and scientific publications, and this article sums up what I have learned while se…
题目链接: Sum of Medians Time Limit:3000MSMemory Limit:262144KB 问题描述 In one well-known algorithm of finding the k-th order statistics we should divide all elements into groups of five consecutive elements and find the median of each five. A median is cal…
A GIF decoder: an exercise in Go interfaces 一个GIF解码器:go语言接口训练 25 May 2011 Introduction At the Google I/O conference in San Francisco on May 10, 2011, we announced that the Go language is now available on Google App Engine. Go is the first language t…
In the last chapter we saw how neural networks can learn their weights and biases using the gradient descent algorithm. There was, however, a gap in our explanation: we didn't discuss how to compute the gradient of the cost function. That's quite a g…
[题目大意] f(i)=((Af(i-1)+B)/(Cf(i-1)+D)) mod P. 给出f(0), A, B, C, D, P, n,求f(n). 多组数据T<=1e4 n<=1e18, P <= 1e9, |f(0)|,|A|,|B|,|C|,|D| <= 1e9 保证任何时候存在逆元. [题解] 首先我们有一种O(TP)的做法:找循环节. 考场上因为数据原因是可以AC的.. # include <map> # include <stdio.h> #…
Source, git Heap is a data structure that can fundamentally change the performance of fairly common algorithms in Computer Science. The heap data structure is called a heap because it satisfies the heap property. The heap property states, that if P i…
