Ads Ranking Algorithm

Assume you are responsible for the ranking algorithm of an advertisement platform. Your task is to rank ads based on a set of metrics. Implement a Python function that takes a list of ads with their metrics and returns a list of ad IDs ordered by rank. The metrics are Click-Through Rate (CTR), Bid, and Expected Clicks. The ranking rules are: Sort by CTR in descending order. If CTRs are the same, sort by Bid in descending order. If Bids are also the same, sort by Expected Clicks in descending order. Sample Input: Ad List: [{'ad_id': 1, 'CTR': 0.05, 'Bid': 10, 'Expected Clicks': 100}, {'ad_id': 2, 'CTR': 0.04, 'Bid': 12, 'Expected Clicks': 80}, {'ad_id': 3, 'CTR': 0.05, 'Bid': 10, 'Expected Clicks': 200}] Sample Output: Ad ID list: [3, 1, 2] Example Input [{'ad_id': 1, 'CTR': 0.05, 'Bid': 10, 'Expected Clicks': 100}, {'ad_id': 2, 'CTR': 0.04, 'Bid': 12, 'Expected Clicks': 80}, {'ad_id': 3, 'CTR': 0.05, 'Bid': 10, 'Expected Clicks': 200}]