Consider the following code snippet:

 1#include <iostream>
 2
 3int GetInt() {
 4    int x = 1;
 5    return x;
 6}
 7
 8int main() {
 9    const int& x = GetInt();
10    std::cout << x << std::endl;
11    return 0;
12}

In particular, pay attention to line #9. Is it guaranteed to be safe?

Install Pelican:

1sudo -H pip install pelican Markdown typogrify

Install Pelican themes

1git clone --recursive https://github.com/getpelican/pelican-themes
2sudo /usr/local/bin/pelican-themes --install pelican-themes/Flex
3sudo chmod 755 /usr/local/lib/python2.7/dist-packages/pelican/themes/Flex

Install Pelican plugins

1git clone --recursive https://github.com/getpelican/pelican-plugins

Fetch blog sources

1git clone git@github.com:j4nu5/j4nu5.github.io.git
2cd j4nu5.github.io.git
3git fetch
4git checkout source

Setup for development

USACO is fun. Though it is fairly easy to get up and running on the platform, there remain a few repetitive steps during problem solving that can be automated. Here is a brief summary of my automation steps:

1. Use a template. Here is mine. Save it as template.cpp:
2. Save this script as solve.sh in the same directory as above:
3. All done! Whenever you’re ready to begin coding a solution, simply execute ./solve.sh PROBLEM_NAME

All the best!