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EndlessCheng / main.cpp
Last active August 29, 2020 03:23
C++ mock test for competitive programming
#include <bits/stdc++.h>
using namespace std;
void run(istream &in, ostream &out) {
// write your code here
int x;
while (in >> x) {
out << x * 2 << '\n';
}
@subfuzion
subfuzion / dep.md
Last active June 14, 2023 15:46
Concise guide to golang/dep

Overview

This gist is based on the information available at golang/dep, only slightly more terse and annotated with a few notes and links primarily for my own personal benefit. It's public in case this information is helpful to anyone else as well.

I initially advocated Glide for my team and then, more recently, vndr. I've also taken the approach of exerting direct control over what goes into vendor/ in my Dockerfiles, and also work from isolated GOPATH environments on my system per project to ensure that dependencies are explicitly found under vendor/.

At the end of the day, vendoring (and committing vendor/) is about being in control of your dependencies and being able to achieve reproducible builds. While you can achieve this manually, things that are nice to have in a vendoring tool include:

@jesselucas
jesselucas / changroup.go
Last active April 17, 2024 14:33
Simple solution for using a WaitGroup with select{}
package main
import (
"fmt"
"sync"
"time"
)
func main() {
// Create a wait group of any size
# Reference:
https://www.cloudgear.net/blog/2015/5-minutes-kubernetes-setup/
# install homebrew and cask
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
# install virtualbox
brew cask install virtualbox
# install dockertoolbox
@denji
denji / golang-tls.md
Last active July 1, 2024 05:41 — forked from spikebike/client.go
Simple Golang HTTPS/TLS Examples

Moved to git repository: https://github.com/denji/golang-tls

Generate private key (.key)
# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)
git config --global https.proxy http://127.0.0.1:1080
git config --global https.proxy https://127.0.0.1:1080
git config --global --unset http.proxy
git config --global --unset https.proxy
npm config delete proxy
@hyg
hyg / gist:9c4afcd91fe24316cbf0
Created June 19, 2014 09:36
open browser in golang
func openbrowser(url string) {
var err error
switch runtime.GOOS {
case "linux":
err = exec.Command("xdg-open", url).Start()
case "windows":
err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
case "darwin":
err = exec.Command("open", url).Start()
@sergiotapia
sergiotapia / images_dimensions.go
Last active February 13, 2024 17:40
Golang - Getting the dimensions of an image. jpg, jpeg, png
package main
import (
"fmt"
"image"
"os"
_ "image/jpeg"
_ "image/png"
)
@kenshinx
kenshinx / client.go
Last active February 3, 2024 18:49
golang socket server & client ping-pong demo
package main
import (
"os"
"log"
"net"
"strconv"
"strings"
)