首先通过一些关键词解释普及或者回顾一下背景, ADX: Ad exchange的简称.一般特指Ad exchange平台模块 DMP: Data Management Platform的简称.DMP存储了流量.受众的各种特征信息. DSP: Demand Side Platform的简称.可以看做流量的购买方,为广告主服务.广告主可以通过DSP购买流量,达到营销的目的.DSP可以接入ad exchange中,参与cpm竞价,购买所需要的受众流量. SSP: Supply Side Platfor
from math import sqrt def multipl(a,b): sumofab=0.0 for i in range(len(a)): temp=a[i]*b[i] sumofab+=temp return sumofab def corrcoef(x,y): n=len(x) #求和 sum1=sum(x) sum2=sum(y) #求乘积之和 sumofxy=multipl(x,y) #求平方和 sumofx2 = sum([pow(i,2) for i in x]) sum
template <class T1, class T2>double Pearson(std::vector<T1> &inst1, std::vector<T2> &inst2) { if(inst1.size() != inst2.size()) { std::cout<<"the size of the vectors is not the same\n"; return 0; } size_t n=inst1.s
链接 https://www.codechef.com/FEB18/problems/CHANOQ/ Chef and odd queries Problem Code: CHANOQ Chef has N segments. For each i (1 ≤ i ≤ N), the i-th segment starts at point Li and ends at point Ri (let's denote it by [Li, Ri]). Let's say that a seg