LeetCode 836: Rectangle Overlap Solution
Master LeetCode problem 836 (Rectangle Overlap), 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.
Problem Explanation
Explanation:
To determine if two rectangles overlap, we need to check if there exists an intersection area between the two rectangles. The rectangles are represented by their bottom-left and top-right coordinates. If the intersection area is positive, then the rectangles overlap.
The idea is to check for overlap by comparing the x and y coordinates of the rectangles. If there is an overlap along both x and y axes, then the rectangles overlap.
Algorithm:
- Check if the rectangles overlap along the x-axis by comparing the x-coordinates of the rectangles.
- Check if the rectangles overlap along the y-axis by comparing the y-coordinates of the rectangles.
- If there is overlap along both axes, return true; otherwise, return false.
Time Complexity: O(1) - The algorithm has a constant time complexity as it performs a fixed number of comparisons.
Space Complexity: O(1) - The algorithm uses a constant amount of extra space.
:
Solution Code
class Solution {
public boolean isRectangleOverlap(int[] rec1, int[] rec2) {
return (rec1[0] < rec2[2] && rec1[1] < rec2[3] && rec1[2] > rec2[0] && rec1[3] > rec2[1]);
}
}Try It Yourself
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