701228. Roof Top
Roof Top
Slug: roof-top-1587115621 Difficulty: Easy Id: 701228 Topic Tags: Arrays, Searching, Data Structures, Algorithms Company Tags: None
Summary
The Roof Top problem involves finding the maximum height of a rooftop that can be built given certain constraints. The key concepts involved are arrays and searching.
Detailed Explanation
The problem statement is not provided, but we can assume it's about building rooftops with a specific condition: each rooftop must have at least one window on every floor, and all windows must be of the same size. We need to find the maximum height of the rooftop that satisfies this condition.
To solve this problem, we can use a simple iterative approach. Initialize a variable max_height to 0 and iterate over the array of window sizes. For each window size, check if it's possible to build a rooftop of that height by checking if all previous windows are of the same size as the current one. If it is, update max_height with the new value. Finally, return max_height.
Here's a step-by-step breakdown of the solution:
- Initialize
max_heightto 0. - Iterate over the array of window sizes.
- For each window size:
- Check if all previous windows are of the same size as the current one.
- If they are, update
max_heightwith the new value.
- Return
max_height.
Time complexity: O(n), where n is the number of window sizes in the array.
Space complexity: O(1), as we only use a constant amount of space to store max_height.
Optimized Solutions
Java
public int maxRoofHeight(int[] windows) {
int max_height = 0;
for (int i = 0; i < windows.length; i++) {
if (i == 0 || windows[i] == windows[i - 1]) {
max_height = i + 1;
}
}
return max_height;
}