কার্ড সর্টিং ও নেভিগেশন ডিজাইন

from itertools import combinations
from collections import defaultdict

# ৬ জন অংশগ্রহণকারীর সিন্থেটিক কার্ড-সর্ট ডেটা -- প্রত্যেকে একই ১২টি নেভিগেশন
# আইটেমকে নিজের মতো করে কয়েকটি দলে ভাগ করেছেন (dict: ক্যাটাগরি-নাম -> আইটেম লিস্ট)
participants = [
    {"help": ["contact_us", "faq", "live_chat"],
     "orders": ["track_order", "order_history", "cancel_order", "shipping_info"],
     "product_info": ["size_guide", "product_reviews", "warranty_info"],
     "other": ["return_policy", "store_locator"]},

    {"customer_service": ["contact_us", "live_chat", "faq"],
     "orders_shipping": ["track_order", "order_history", "cancel_order", "shipping_info"],
     "product_info": ["size_guide", "product_reviews", "warranty_info"],
     "other": ["return_policy", "store_locator"]},

    {"help_support": ["contact_us", "faq", "live_chat", "return_policy"],
     "order_management": ["track_order", "order_history", "cancel_order"],
     "shopping_info": ["size_guide", "product_reviews", "warranty_info", "shipping_info"],
     "locations": ["store_locator"]},

    {"support": ["contact_us", "live_chat", "faq"],
     "account_orders": ["track_order", "order_history", "cancel_order", "return_policy"],
     "product_details": ["size_guide", "product_reviews", "warranty_info"],
     "shipping_store": ["shipping_info", "store_locator"]},

    {"contact_help": ["contact_us", "faq", "live_chat"],
     "orders": ["track_order", "order_history", "cancel_order", "shipping_info", "return_policy"],
     "product_research": ["size_guide", "product_reviews", "warranty_info"],
     "store": ["store_locator"]},

    {"help": ["contact_us", "faq", "live_chat", "return_policy"],
     "orders": ["track_order", "order_history", "cancel_order"],
     "product_info": ["size_guide", "product_reviews", "warranty_info", "shipping_info"],
     "store_locator_group": ["store_locator"]},
]

items = sorted({item for p in participants for group in p.values() for item in group})

# কো-অকারেন্স গণনা -- প্রতিটি আইটেম-জোড়া কতবার একই দলে রাখা হয়েছে, সব
# অংশগ্রহণকারী মিলিয়ে
cooccur = defaultdict(int)
for p in participants:
    for group in p.values():
        for a, b in combinations(sorted(group), 2):
            cooccur[(a, b)] += 1

ranked = sorted(cooccur.items(), key=lambda kv: (-kv[1], kv[0]))
n = len(participants)

print(f"মোট আইটেম: {len(items)} | মোট অংশগ্রহণকারী: {n}\n")
print("সবচেয়ে শক্তিশালী পেয়ার (>=5/6 অংশগ্রহণকারী একসাথে রেখেছেন):")
for (a, b), count in ranked:
    if count >= 5:
        print(f"  {a:16s} + {b:16s} : {count}/{n}")

print("\nদ্বিধাগ্রস্ত/মিশ্র আইটেম (return_policy, shipping_info, store_locator)-এর পেয়ার:")
watch = {"return_policy", "shipping_info", "store_locator"}
for (a, b), count in ranked:
    if (a in watch or b in watch) and 2 <= count < 5:
        print(f"  {a:16s} + {b:16s} : {count}/{n}")