LeetCode 1322: Ads Performance Solution

Master LeetCode problem 1322 (Ads Performance), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

1322. Ads Performance

Easy

Database

Problem Explanation

Explanation:

To solve this problem, we need to calculate the percentage of ads that received positive feedback based on the given input arrays of the number of clicks and the number of impressions for each ad.

We can calculate the click-through rate (CTR) for each ad by dividing the number of clicks by the number of impressions and then multiply by 100 to get the percentage. If the CTR is greater than or equal to 1%, we consider it a positive feedback ad.

Here are the steps to solve the problem:

Initialize a variable positiveAds to keep track of the number of ads with positive feedback.
Iterate through each ad and calculate the CTR using the formula clicks / impressions * 100.
If the CTR is greater than or equal to 1%, increment the positiveAds count.
Finally, return the percentage of positive feedback ads by dividing positiveAds by the total number of ads and multiplying by 100.

Time Complexity: O(n) where n is the number of ads Space Complexity: O(1)

: :

Solution Code

class Solution {
    public int[] percentageAds(int[] clicks, int[] impressions) {
        int positiveAds = 0;
        int n = clicks.length;
        
        for (int i = 0; i < n; i++) {
            double ctr = (double)clicks[i] / impressions[i] * 100;
            if (ctr >= 1.0) {
                positiveAds++;
            }
        }
        
        return new int[]{positiveAds * 100 / n};
    }
}

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