Zen++ Language Support

Syntax highlighting, intellisense, and one-click run for Zen++ - a fast, lightweight interpreted language designed for competitive programming.

Try Zen++ in your browser | Language Reference | GitHub

Features

Syntax Highlighting

Full TextMate grammar covering all Zen++ syntax:

• Keywords (fn, if, else, while, for, return, struct, import, break, continue, in)
• 40+ built-in functions (println, read, sort, reverse, fill, rand, etc.)
• Stdlib types (Stack, Queue, DSU, FenwickTree, SegTree, etc.)
• F-string interpolation - expressions inside {} are highlighted normally, string parts stay green
• User-defined function calls get their own highlight color
• Numbers, strings, comments (line and block), operators including **, <<, >>, ~

Run Button

Click the play button in the editor title bar or press Cmd+Enter (Mac) / Ctrl+Enter (Windows/Linux) to run the current .zpp file. Requires zenpp to be installed and on your PATH (install instructions).

Editor Support

• Auto-closing brackets, quotes, and braces
• Auto-indentation on { and dedent on }
• Line and block comment toggling

What is Zen++?

Zen++ is a language built for competitive programming. It has C-style syntax but strips away everything slow to type - no semicolons, no type declarations, no int main(). A Codeforces solution that takes 10 lines in C++ takes 5 in Zen++.

// read n numbers, sort them, print the median
n = read()
a = read(n)
sort(a)
println(a[n / 2])

// Dijkstra's shortest path in 3 lines
import std
n, m = read(), read()
adj = wgraph(n, m)
println(dijkstra(adj, 0))

// f-strings, lambdas, slicing
v = [3, 1, 4, 1, 5, 9]
sort(v, fn(a, b) { b - a })
println(f"top 3: {v[:3]}")

The language includes vectors, maps, sets, structs, lambdas, slicing, destructuring, f-strings, chained comparisons, and a standard library with Stack, Queue, DSU, PriorityQueue, FenwickTree, SegTree, Dijkstra, BFS, binary search, prefix sums, and more.

Requirements

To use the run button, install the Zen++ interpreter:

git clone https://github.com/zainmarshall/zen-plus-plus.git
cd zen-plus-plus
bash install.sh

Syntax highlighting works without the interpreter installed.