Problem 19 You are given the following information, but you may prefer to do some research for yourself.以下信息仅供参考(你可能会想自己去百度):1 Jan 1900 was a Monday. 1900年一月一号是星期一Thirty days has September, 九月.四月.六月以及十一月有30天April, June and November.All the rest have…

You are given the following information, but you may prefer to do some research for yourself. 1 Jan 1900 was a Monday. Thirty days has September,April, June and November.All the rest have thirty-one,Saving February alone,Which has twenty-eight, rain…

There are some Common Bugs in C Programming. Most of the contents are directly from or modified from Prof. Liu Pangfeng's blog. Most credits should go to him. For all the following problems, answer the output message of the code, unless they are spec…

http://codeforces.com/problemset/problem/19/B 对于每个物品,能偷多ti个,那么先让ti + 1, 表示选了这个东西后,其实就是选了ti + 1个了.那么只需要选出>=n个即可. 一开始的时候想不到ti + 1,一直不知道能多选ti个后,本来是选了多少个. #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #inc…

The Brain as a Universal Learning Machine This article presents an emerging architectural hypothesis of the brain as a biological implementation of a Universal Learning Machine.  I present a rough but complete architectural view of how the brain work…

[poj1024]Tester Program Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 2760   Accepted: 981 Description Tester Program For this contest, we first designed the following problem (note that you do not have to solve it!): Another Wall in t…

上一个博客已经讲了softmax理论部分,接下来我们就来做个实验,我们有一些手写字体图片(28*28),训练样本(train-images.idx3-ubyte里面的图像对应train-labels.idx1-ubyte)和测试样本(t10k-images.idx3-ubyte里面的图片对应t10k-labels.idx1-ubyte),我们用训练样本训练softmax模型,测试样本用来做测试.数据和下面讲解的程序下载地址:(这里) 我们首先展示下我们训练样本部分的图片和label: 1: im…

[题目链接] http://uoj.ac/problem/19 [算法] 首先,在反向图上从终点广搜,求出每个点是否可以在答案路径中 然后在正向图中求出源点至终点的最短路,同样可以使用广搜 时间复杂度 : O(N) [代码] #include<bits/stdc++.h> using namespace std; #define MAXN 10010 #define MAXM 200010 struct edge { int to,nxt; } e[MAXM << ]; int i…

本题来自 Project Euler 第19题:https://projecteuler.net/problem=19 ''' How many Sundays fell on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000)? Answer: 171 ''' from datetime import * firstDay = date(1901,1,1) lastDay = date(…

代码: function [X1k, X2k] = real2dft(x1, x2, N) %% --------------------------------------------------------------------- %% DFT of two Real-Valued N-Point sequence x1(n) and x2(n) %% ---------------------------------------------------------------------…