C++ Competitive Programming Setup

Short description: A lightweight C++23 competitive-programming setup for Sublime Text, with a starter template and STL debug utilities.

This repository contains the personal C++ tools used to write, compile, and debug competitive-programming solutions quickly.

Contents

• debug.h — a local debugging header that prints numbers, strings, pairs, tuples, STL containers, adapters, optionals, bitsets, and C-style arrays.
• Sublime-Setup/C++23.sublime-build — a Sublime Text build system using g++, C++23, warnings, optimisation, and AddressSanitizer/UBSan.
• Sublime-Setup/insert_cppmain.py — a Sublime Text command that inserts a C++ solution template with common aliases, PBDS, fast I/O, and a timestamp.
• Sublime-Setup/Default (Linux).sublime-keymap — binds Ctrl+Alt+M to insert the template in C++ files.

Requirements

• Linux
• Sublime Text
• g++ with C++23 support

Setup

1. Copy debug.h to a directory searched by your compiler, such as /usr/local/include, or add this repository to your compiler include paths.
2. Copy the files in Sublime-Setup/ to the appropriate Sublime Text Packages/User directory.
3. Select Tools → Build System → C++23 in Sublime Text.
4. In a C++ source file, press Ctrl+Alt+M to insert the starter template.

The build profile compiles the open file and runs the produced executable for up to four seconds. It reads from inputf.in and writes to outputf.in in the source file's directory.

Debugging

The starter template enables debug output when compiled with -DLOCAL:

#ifdef LOCAL
#include <debug.h>
#else
#define dbg(x...)
#endif

// Example
vector<int> values = {1, 2, 3};
dbg(values); // values:- [1 2 3]

Debug output is written to stderr, keeping normal program output clean.