Competitive Programming

Welcome to my personal repository where I keep track of the competitive programming contests I participate in and my problem solutions. This repository will also serve as a storage for algorithms and templates I might use in the future.

Repository Structure

• atcoder: My solutions to AtCoder contests.
• codechef: My solutions to CodeChef contests.
• codeforces: My solutions to Codeforces contests.
• cses: My solutions to Cses problems.
• maratona: My solutions to problems and phases from Maratona.
• templates: A personal collection of templates and algorithms for competitive programming.

Custom Shell Functions for Compilation and Debugging

I use a set of custom shell functions to compile and debug my C++ solutions. These are added to my ~/.zshrc file for convenience.

How to Set Up

1. Copy the function definitions into your ~/.zshrc file.
2. Run source ~/.zshrc or restart your terminal to apply the changes.

Compile & Run

co

Compiles C++ files with standard optimization and common warning flags.

co() {
        g++ -std=c++17 -O2 -Wall -Wextra -Wshadow -DLOCAL -o "${1%.*}" $1;
}

Usage:

co <filename>

run

Compiles with co() and runs.

run() {
       co $1 && ./${1%.*} & fg;
}

Usage:

run <filename>

codb

Compiles C++ files with extensive warnings, static analysis, and debugging symbols.

codb() {
        g++ -std=c++17 -O2 -Wall -Wextra -pedantic -Wshadow -Wformat=2 -Wfloat-equal -Wconversion -Wlogical-op -Wshift-overflow=2 -Wduplicated-cond -Wcast-qual -Wcast-align -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -D_GLIBCXX_ASSERTIONS -ggdb3 -fsanitize=address,undefined -fanalyzer -Wnon-virtual-dtor -Wold-style-cast -Woverloaded-virtual -Wuseless-cast -Wnull-dereference -Wdouble-promotion -Wmisleading-indentation -Wduplicated-branches -Walloca -Wzero-as-null-pointer-constant -Wpessimizing-move -Wredundant-move -Wextra-semi -Wshadow=local -Wundef -DLOCAL -ggdb3 -fmax-errors=2 -o "${1%.*}" $1;
}

Usage:

codb <filename>

Debugging with GDB

debug

Compiles with codb() and launches gdb in TUI mode with the specified executable and input file.

debug() {
	codb $1 && gdb --tui -q ${1%.*} -ex "run <${1%.*}.in";
}

Usage:

debug <filename>

Navigation

Firstly, setup the following variables:

• CP_DIR: Directory to the Competitive-Programming folder.
• platforms: Map to the platforms configured in the folder.

CP_DIR="~/Documents/Competitive-Programming"
declare -A platforms=( ["cf"]="codeforces" ["ac"]="atcoder" ["cc"]="codechef" ["cs"]="cses" )

Template File

Opens the tamplate file in VS Code.

template() {
        cd "${CP_DIR}/" && code -gr "${CP_DIR}/templates/basic.cpp:171:5";
}

Usage:

template

New Contest

Sets up a new directory for a contest from a specified platform (default is Codeforces) and opens it in VS Code.

contest() {
        local platform=${platforms[${2:-cf}]}  
        local contest_dir="${CP_DIR}/${platform}/Contests/${1}"
        mkdir -p "${contest_dir}" && code -r "${contest_dir}/" && echo "${platform}" && echo "${contest_dir}";
}

Usage:

contest <contest_id> [ cf | ac | cc ]

Problems Folder

Opens the problems directory for a specified platform (default is Codeforces) in VS Code.

problems() {
        local platform=${platforms[${1:-cf}]} 
        local problems_dir="${CP_DIR}/${platform}/Problems"
        mkdir -p "${problems_dir}" && code -r "${problems_dir}/"
}

Usage:

problems [ cf | ac | cc ]

License

The content in this repository is not open for contribution and is for personal use only. It is not licensed for public use.