LeetCode 2884: Modify Columns Solution
Master LeetCode problem 2884 (Modify Columns), 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.
2884. Modify Columns
Problem Explanation
Explanation:
To modify the salary column by multiplying each salary by 2, we simply need to iterate through each row of the DataFrame and update the salary value by multiplying it by 2.
- Time complexity: O(n) where n is the number of rows in the DataFrame.
- Space complexity: O(1) as we are not using any extra space.
Solution Code
public void modifySalary(DataFrame employees) {
for (int i = 0; i < employees.size(); i++) {
int currentSalary = employees.get(i, "salary");
employees.set(i, "salary", currentSalary * 2);
}
}Try It Yourself
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