工具

工具

Competitive Server

需要安装flask
支持Competitive Companion吊起,生成文件夹和测试文件

然后可以用cf-tool(rev.dianhsu)在该目录下进行编译和运行

备注:因为生成的文件和标题相同,考虑特殊字符会导致cf-tool错误,需要在编译命令中的文件名处加上引号

from flask import Flask
from flask import request

import os

app = Flask(__name__)
BASE_DIR = '.'
PORT = 10042

@app.route("/", methods=['POST'])
def handle():
    tests = request.json['tests']
    problem_dir = os.path.join(BASE_DIR, request.json['name'])
    os.makedirs(problem_dir, exist_ok=True)
    for idx, it in enumerate(tests):
        with open(os.path.join(problem_dir, f'testI{idx + 1}.txt'), 'w') as f:
            f.write(it['input'])
        with open(os.path.join(problem_dir, f'testO{idx + 1}.txt'), 'w') as f:
            f.write(it['output'])
    return ""


if __name__ == '__main__':
    app.run(port=PORT, debug=False)

NeoVim配置

安装NeoVim

  • Windows: 从neovim github release下载最新的安装包,解压之后将目录添加到PATH即可
  • Linux: 可以通过包管理工具下载NeoVim,例如:sudo apt install neovim(Ubuntu)
  • macOS: 可以通过HomeBrew工具安装NeoVim,brew install neovim

安装包管理工具

我用的是vim-plug,按照链接当中的方法,安装NeoVim的vim-plug。

NeoVim配置文件

set hlsearch
set showmatch
set tabstop=4
set softtabstop=4
set shiftwidth=4
set expandtab
set autoindent
set number
syntax on
set noswapfile
set backspace=indent,eol,start
set smartindent

set updatetime=300

let g:formatdef_custom_cpp = '"clang-format -style={BaseOnStyle: Google, IndentWidth: 4} --verbose"'
let g:formatters_cpp = ['custom_cpp']
let c_no_curly_error = 1

call plug#begin('~/.vim/plugged')

Plug 'bfrg/vim-cpp-modern'

Plug 'neoclide/coc.nvim', {'branch': 'release'}

Plug 'jackguo380/vim-lsp-cxx-highlight'

Plug 'Chiel92/vim-autoformat'

call plug#end()

inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

C++环境配置(LSP和Formatter支持)

需要安装clangd和clang-format。
Windows可以在https://winlibs.com/#download-release这里下载带clangd和llvm环境的gcc套件。
Linux和macOS可以使用包管理工具安装环境。

拒绝QQ拦截外部链接

// ==UserScript==
// @name        拒绝拦截外部链接 - qq.com
// @namespace   Violentmonkey Scripts
// @match       https://c.pc.qq.com/middlem.html
// @grant       none
// @version     1.0
// @author      dianhsu
// @description 2021/8/29 下午6:46:14
// ==/UserScript==

(function(){
  'use strict';
  
  //console.log(window.location.href)
  let searchParams = new URLSearchParams(window.location.search);
  let reqUrl = searchParams.get("pfurl");
  if(!!reqUrl){
      window.location.href = reqUrl;
  }
})();

Linux

HP Printer

配置打印机的时候,出现这个错误

CUPS server error

client-error-not-possible

安装smbclient即可解决。

CUPS 打印机双页打印

首先安装需要的Python包

pip3 install pycups
pip3 install PyPDF2

执行下面的代码

# !/usr/bin/env python3
import os
import tempfile
import uuid

import PyPDF2
import cups
from PyPDF2 import PdfFileReader

# 连接打印机
conn = cups.Connection()
printers = conn.getPrinters()
printer = None
for key in printers:
    printer = key
if printer is None:
    print('亲,你的打印机呢')
    exit(-1)
# 上传文件
tmp_dir = tempfile.TemporaryDirectory().name
os.makedirs(tmp_dir, exist_ok=True)
tmp_path = os.path.join(tmp_dir, f'{uuid.uuid4()}.pdf')
pdf_path = input("请输入PDF路径: ")

# 如果是奇数页文件情况,需要补充一个空白页到末尾
fin = open(pdf_path, 'rb')
pdf = PdfFileReader(fin)
page_num = pdf.getNumPages()
outputPdf = PyPDF2.PdfFileWriter()
outputPdf.appendPagesFromReader(pdf)
if page_num % 2 != 0:
    outputPdf.addBlankPage()
with open(tmp_path, 'wb') as fout:
    outputPdf.write(fout)
fin.close()
tmp_pdf = PdfFileReader(tmp_path)
page_num = tmp_pdf.getNumPages()

double_page = True
if double_page:
    # 获取奇数页码和偶数页码
    all_pages = [str(it + 1) for it in range(page_num)]
    odd_str = ','.join(all_pages[0::2])
    even_str = ','.join(all_pages[1::2])
    # 打印奇数页
    conn.printFile(printer, tmp_path, pdf_path, {'page-ranges': odd_str})
    # 去打印机把纸拿下来换一下
    test = input("请输入\"next\"打印背面: ")
    while test != "next":
        test = input("请输入\"next\"打印背面: ")
    # 从后往前打印偶数页
    conn.printFile(printer, tmp_path, pdf_path, {'outputorder': 'reverse', 'page-ranges': even_str})
else:
    # 按顺序打印全部的页码
    conn.printFile(printer, tmp_path, pdf_path, {})

工具
https://www.dianhsu.com/2022/05/10/tool/
Author
Dian Hsu
Posted on
May 10, 2022
Licensed under