import edu.princeton.cs.algs4.Out;
import edu.princeton.cs.algs4.StdOut;
public class Bag<Item> {
private Item[] items;
private int pos=0;
public Bag(int size){
items = (Item[]) new Object[size];
}
void add(Item item){
if(pos<=items.length)[......]from future import print_function
import torch
torch.tensor(data, dtype) # data 可以是Numpy中的数组
torch.as_tensor(data)
torch.from_numpy(ndarray)
torch.empty(size)
torch.empty_like(input)
torch.zeros(size)
torch.zeros_like(input, dtype)
torch.ones(size)
torch.ones_like(input[……]
给定测试集P, 其Shape为(M,D), 再给定训练集(N,D), 其Shape为(N,D).
令P_i为P的第i行, 即P_i = [P_{i1}\space P_{i2}\space ··· \space P_{iD}], 同理C_j=[C_{j1}\space C_{j2}\space ··· C_{iN}].
首先计算P_i与C_j间的距离dists(i,j),
d(P_i,C_j)=\sqrt{\sum_{k}{(P_{ik}-C_{jk})^2}}=\sqrt{\sum_{k}{P_{ik}^2}+\sum_{k}{C_{jk}^2}-2(P_{i1}*C_{j1}+···+P[......]
开始听LDR的歌的时候, Honeymoon空灵的声音让我想起了Noora的Wonderland, 虽然当时喜欢大气的芭乐, 但是这种气氛音乐也很令人销魂。不过听了很久都不能分辨到底每首歌之间有什么差别XD.
记得在长途大巴上听着Honeymoon, 真的是一种特别的享受.
时至今日, 一直爱着的Breakdown倒也是在鼓点和洛可可之间散发着缠绵的拉扯和哀怨.
Honeymoon陪伴着我度过了一个夏天和一个学期的生活, 那张专封中的CA也是那段夏日的美好回忆…
Climb to the H…
一天吃饭时, 用着网易云的[……]
import edu.princeton.cs.algs4.Accumulator;
import edu.princeton.cs.algs4.StdDraw;
public class VisualAccumulator extends Accumulator {
private double total;
private int N;
public VisualAccumulator(int trails,double max){
StdDraw.setXscale(0,trails);
St[......]Can you believe?
Now I try to have a dash everyday.
For me back that time, this won’t happened.
While I’m running, I can’t help myself recalling the 3000m long race.
How did you endure the pain and hardships?
I bet you will encounter me at every corner.
With that red flag burning stil[……]
PROC SETINIT RELEASE='9.4';
SITEINFO NAME='CNAM LICENCE CAMPUS'
SITE=70159246 OSNAME='WX64_E' RECREATE WARN=51 GRACE=45
BIRTHDAY='13OCT2020'D EXPIRE='30SEP2021'D PASSWORD=119060923;
CPU MODEL=' ' MODNUM=' ' SERIAL=' �[......]How much I spend on meaningless approaches to learn algorithms comes back to me now.
因为还不知道Java里泛型咋写, 所以用int数组实现…
import edu.princeton.cs.algs4.In;
import edu.princeton.cs.algs4.StdIn;
import edu.princeton.cs.algs4.StdOut;
import java.util.Arrays;
public class Bina[......]