Problem 60628. ICFP2024 008: Lambdaman4 Breadth Solver

The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship flying, 3D - graph programming, and Efficiency - processing complex ICFP message to a numerical value.
The Lambdaman 4 maze is medium size,21x21, L near top left, '.' a cheese bit, # is Wall. Matrix uses Wall=0,L=1,Cheese=2. Encircling Walls are added to all mazes.
The contest goal was to write a minimal size, bytes, expression that moves L, Lambdaman, to eat each cheese bit.
The contest's best known Lambdaman4 solution is 348 U/R/D/L commands by completing the lower left before lower right.
This challenge is to solve Lamdaman maze 4 by eating all the cheese via a char path of UDLR, with a program smaller than the template. The template implements a breadth first search with prior state check and a Hack specifically for Maze 4. Known suspected Optimal length solution of 348 or better required. This maze has no loops but multiple cul-de-sacs. Fill smallest branch first to minimize total length.
Solve

Solution Stats

75.0% Correct | 25.0% Incorrect
Last Solution submitted on Jul 20, 2024

Solution Comments

Show comments

Problem Recent Solvers2

Suggested Problems

More from this Author308

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!