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skyzh / djjoystick.py
Created November 20, 2018 12:31
Dajiang RoboMaster Joystick Integration
import serial
from struct import pack
from crccheck.crc import Crc8, Crc16
from time import sleep
CRC8_TAB = [ 0x00,0x5e,0xbc,0xe2,0x61,0x3f,0xdd,0x83,0xc2,0x9c,0x7e,0x20,0xa3,0xfd,0x1f,0x41,
0x9d,0xc3,0x21,0x7f,0xfc,0xa2,0x40,0x1e,0x5f,0x01,0xe3,0xbd,0x3e,0x60,0x82,0xdc,
0x23,0x7d,0x9f,0xc1,0x42,0x1c,0xfe,0xa0,0xe1,0xbf,0x5d,0x03,0x80,0xde,0x3c,0x62,
0xbe,0xe0,0x02,0x5c,0xdf,0x81,0x63,0x3d,0x7c,0x22,0xc0,0x9e,0x1d,0x43,0xa1,0xff,
0x46,0x18,0xfa,0xa4,0x27,0x79,0x9b,0xc5,0x84,0xda,0x38,0x66,0xe5,0xbb,0x59,0x07,
@skyzh
skyzh / tpo.js
Created December 29, 2018 09:01
Extract TPO tests from "Xiao Zhan TOEFL"
const QUESTIONS = require('./t_question.json');
const ITEMS = require('./t_questionItem.json');
const ANSWERS = require('./t_answer.json');
const _ = require('lodash');
const result = _.map([13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24], TPO_CNT => {
let questions = _.filter(QUESTIONS, question => question.app_name_sub == `tpo${TPO_CNT}` && question.passage == 'listening');
let items = _.map(questions, question =>
_.chain(ITEMS)
@skyzh
skyzh / _textbook.md
Created February 22, 2019 14:52
Generate textbook order for classmates

image

@skyzh
skyzh / _Deque_README.md
Last active May 3, 2019 10:19
Deque for Data Structure homework
@skyzh
skyzh / BinomialHeap.cpp
Created April 17, 2019 07:51
Binomial Heap in cpp
#include <iostream>
#include <queue>
using namespace std;
template<typename T>
struct BinomialHeap {
struct Node {
T x;
int order;
@skyzh
skyzh / bst_interval.cpp
Last active April 27, 2019 14:14
#include <iostream>
#include <climits>
#include <cstring>
using namespace std;
template<typename T>
struct BST {
struct Node {
T x;
@skyzh
skyzh / contest_1_strategy.hpp
Last active July 25, 2019 11:31
PPCA 2019 Contest B Solution
#ifndef STRATEGY_HPP
#define STRATEGY_HPP
#include <vector>
#include <cstdlib>
#include <ctime>
#include "util.hpp"
#include <vector>
int cnt = 0;
@skyzh
skyzh / index.html
Created July 25, 2019 01:02
Use d3.js to visualize collision between point and segment
<!DOCTYPE html>
<html>
<head>
<title>Physics Test</title>
</head>
<body>
<svg id="main" width="800" height="800"></svg>
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="main.js"></script>
</body>
@skyzh
skyzh / CE.cpp
Created October 15, 2019 11:05
Templated parameter with default value will throw compile error.
#include <iostream>
#include <functional>
using namespace std;
template <typename T>
bool compare_by_value(const T& a, const T& b) { return a < b; }
template <typename Comp>
bool alex_compare_int(const int& a, const int &b, Comp comp = compare_by_value) {
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skyzh / huffman.cpp
Created November 17, 2019 10:17
Huffman Encoding
#include <iostream>
#include <fstream>
#include <map>
#include <algorithm>
#include <queue>
#include <string>
using namespace std;
struct Node {