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[2] implement maze solver with statistics collection

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BoriskovaDV 2026-05-24 20:09:48 +00:00
parent 43ca559493
commit 3dc7e19f49
1 changed files with 39 additions and 3 deletions
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42
BoriskovaDV/docs/data/2-nd-exercise/main.py
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@ -2,6 +2,7 @@ import sys
import os import os
from collections import deque from collections import deque
import heapq import heapq
import time
class GridPoint: class GridPoint:
def __init__(self, x, y): def __init__(self, x, y):
@ -174,6 +175,40 @@ class AStar(SearchAlgorithm):
self._visited = len(seen) self._visited = len(seen)
return [] return []
class LabyrinthSolver:
def __init__(self, lab):
self.lab = lab
self.algorithm = None
def set_algorithm(self, algo):
self.algorithm = algo
def solve(self):
if not self.algorithm:
return None
t0 = time.perf_counter()
path = self.algorithm.find_way(self.lab, self.lab.start_point, self.lab.exit_point)
t1 = time.perf_counter()
ms = (t1 - t0) * 1000
return ms, self.algorithm.get_visited(), len(path)
def run_experiment(maze_file, algo, runs=5):
loader = TextMazeLoader()
lab = loader.load(maze_file)
total_ms = 0
total_visited = 0
total_len = 0
for _ in range(runs):
solver = LabyrinthSolver(lab)
solver.set_algorithm(algo)
stats = solver.solve()
if stats:
ms, vis, plen = stats
total_ms += ms
total_visited += vis
total_len += plen
return total_ms / runs, total_visited / runs, total_len / runs
class TextView: class TextView:
def display(self, lab): def display(self, lab):
os.system('cls' if os.name == 'nt' else 'clear') os.system('cls' if os.name == 'nt' else 'clear')
@ -197,11 +232,12 @@ class TextView:
print(" S - start E - exit # - wall . - path") print(" S - start E - exit # - wall . - path")
if __name__ == "__main__": if __name__ == "__main__":
# quick demo
loader = TextMazeLoader() loader = TextMazeLoader()
lab = loader.load("maze/maze1.txt") lab = loader.load("maze/maze1.txt")
view = TextView() view = TextView()
view.display(lab) view.display(lab)
print("\nTesting BFS...") print("\nRunning experiment on maze1.txt with BFS...")
bfs = BreadthFirst() bfs = BreadthFirst()
path = bfs.find_way(lab, lab.start_point, lab.exit_point) avg_t, avg_v, avg_l = run_experiment("maze/maze1.txt", bfs, runs=3)
print(f"BFS path length: {len(path)} visited: {bfs.get_visited()}") print(f"BFS: time={avg_t:.3f}ms visited={avg_v:.0f} length={avg_l:.0f}")