создана функция, проводящая замеры, функция сохраняющая замеры
This commit is contained in:
novikovsd 2026-05-24 13:34:12 +00:00
parent 859ee847dd
commit 52a5aa8fc6

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@ -217,4 +217,90 @@ def measure_delete(obj, struct_name, names_to_delete):
for name in names_to_delete:
obj = bst_delete(obj, name)
elapsed = time.perf_counter() - start
return elapsed, obj
return elapsed, obj
def run_experiment(n=10000, repeats=5):
records_sorted, records_shuffled = generate_test_data(n)
existing_names = [name for name, _ in records_sorted[:100]]
nonexisting_names = [f"None_{i}" for i in range(10)]
all_names = [name for name, _ in records_sorted]
structures = ["LinkedList", "HashTable", "BST"]
modes = [("shuffled", records_shuffled), ("sorted", records_sorted)]
results = []
for struct_name in structures:
for mode_name, records in modes:
for rep in range(repeats):
insert_time, obj = measure_insert(struct_name, records)
results.append([struct_name, mode_name, "insert", rep+1, insert_time])
find_time = measure_find(obj, struct_name, existing_names, nonexisting_names)
results.append([struct_name, mode_name, "find", rep+1, find_time])
random.seed(rep)
to_delete = random.sample(all_names, 50)
delete_time, obj = measure_delete(obj, struct_name, to_delete)
results.append([struct_name, mode_name, "delete", rep+1, delete_time])
return results
def save_results_to_csv(results, filename="docs/data/results.csv"):
os.makedirs(os.path.dirname(filename), exist_ok=True)
with open(filename, 'w', newline='', encoding='utf-8') as f:
writer = csv.writer(f)
writer.writerow(["Structure", "Mode", "Operation", "Repeat", "Time_sec"])
writer.writerows(results)
print(f"Результаты сохранены в {filename}")
def aggregate_results(results):
from collections import defaultdict
agg = defaultdict(list)
for row in results:
struct, mode, op, rep, t = row
agg[(struct, mode, op)].append(t)
means = {k: sum(v)/len(v) for k, v in agg.items()}
return means
def plot_results(means, output_dir="docs"):
try:
import matplotlib.pyplot as plt
import numpy as np
except ImportError:
print("Matplotlib не установлен. Графики не построены.")
return
operations = ["insert", "find", "delete"]
structures = ["LinkedList", "HashTable", "BST"]
modes = ["shuffled", "sorted"]
fig, axes = plt.subplots(1, 3, figsize=(15, 5))
for idx, op in enumerate(operations):
ax = axes[idx]
x = np.arange(len(structures))
width = 0.35
shuffled_means = [means.get((struct, "shuffled", op), 0) for struct in structures]
sorted_means = [means.get((struct, "sorted", op), 0) for struct in structures]
ax.bar(x - width/2, shuffled_means, width, label='случайный порядок', color='skyblue')
ax.bar(x + width/2, sorted_means, width, label='отсортированный порядок', color='salmon')
ax.set_xticks(x)
ax.set_xticklabels(structures, rotation=15)
ax.set_ylabel('Время (сек)')
ax.set_title(f'{op.upper()}')
ax.legend()
ax.grid(axis='y', linestyle='--', alpha=0.7)
plt.tight_layout()
plt.savefig(os.path.join(output_dir, "comparison.png"), dpi=150)
plt.show()
if __name__ == "__main__":
results = run_experiment(n=10000, repeats=5)
save_results_to_csv(results)
means = aggregate_results(results)
print("\nСреднее время по операциям (сек):")
for (struct, mode, op), t in sorted(means.items()):
print(f"{struct:12} {mode:8} {op:6} : {t:.6f}")
plot_results(means)