1 #include <bits/stdc++.h> 2 #define pb push_back 3 #define _for(i,a,b) for(int i = (a);i < (b);i ++) 4 #define INF 1000000003 5 #define ll long long 6 7 using namespace std; 8 9 const int maxn = 50003; 10 inline ll read() 11 { 12
FLV协议简介 FLV（Flash Video）是一种流媒体格式，因其体积小、协议相对简单，很快便流行开来，并得到广泛的支持。 常见的HTTP-FLV直播协议，就是使用HTTP流式传输通过FLV封装的音视频数据。对想要了解HTTP-FLV的同学来说，了解FLV协议很有必要。 概括地说，FLV 由 FLV header 跟 FLV file b
scipy.optimize.linprog(c, A_ub=None, b_ub=None, A_eq=None, b_eq=None, bounds=None, method='simplex', callback=None, options=None) from scipy import optimize as opimport numpy as npc=np.array([2,3,-5])A_ub=np.array([[-2,5,-1],[1,3,1]])B_ub=np.
SELECT ub.telphone, SUM(IF(b.type = 1 AND b.level = 1, 1, 0)) AS type11, SUM(IF(b.type = 1 AND b.level = 2, 1, 0)) AS type12, SUM(IF(b.type = 2 AND b.level = 1, 1, 0)) AS type21, SUM(IF(b.type = 2 AND b.level = 2, 1, 0)) AS type22, SUM
本文是对官方文档中scipy.optimize.linprog的简单翻译和解释。（第一次写博客，也不太会用博客园的编辑器，可能措辞和排版有不合适之处，请见谅） 文档链接：https://docs.scipy.org/doc/scipy-0.15.1/reference/generated/scipy.optimize.linprog.html 线性规划的定义及解法就不过多介绍了，（毕
