LeetCode 1620: Coordinate With Maximum Network Quality Solution
Master LeetCode problem 1620 (Coordinate With Maximum Network Quality), a medium 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.
1620. Coordinate With Maximum Network Quality
Problem Explanation
Explanation:
- We iterate over each integral coordinate within the given bounds and calculate the network quality at that coordinate by summing up the signal qualities from all reachable towers.
- We keep track of the coordinate with the maximum network quality seen so far and return it in the end.
Time Complexity: O(n^3), where n is the maximum value of the coordinates (50 in this case). Space Complexity: O(1)
:
Solution Code
class Solution {
public int[] bestCoordinate(int[][] towers, int radius) {
int maxQuality = 0;
int[] bestCoordinate = new int[]{0, 0};
for (int x = 0; x <= 50; x++) {
for (int y = 0; y <= 50; y++) {
int quality = 0;
for (int[] tower : towers) {
int dist = (x - tower[0]) * (x - tower[0]) + (y - tower[1]) * (y - tower[1]);
if (dist <= radius * radius) {
quality += tower[2] / (1 + Math.sqrt(dist));
}
}
if (quality > maxQuality) {
maxQuality = quality;
bestCoordinate = new int[]{x, y};
}
}
}
return bestCoordinate;
}
}Try It Yourself
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