Create coordinate-with-maximum-network-quality.cpp

Author: kamyu104

C++/coordinate-with-maximum-network-quality.cpp

@@ -0,0 +1,36 @@
+// Time:  O(n^2)
+// Space: O(1)
+
+class Solution {
+public:
+    vector<int> bestCoordinate(vector<vector<int>>& towers, int radius) {
+        int min_x = numeric_limits<int>::max();
+        int max_x = numeric_limits<int>::min();
+        int min_y = numeric_limits<int>::max();
+        int max_y = numeric_limits<int>::min();
+        for (const auto& tower: towers) {
+            min_x = min(min_x, tower[0]);
+            max_x = max(max_x, tower[0]);
+            min_y = min(min_y, tower[1]);
+            max_y = max(max_y, tower[1]);
+        }
+        int max_quality = 0;
+        vector<int> result;
+        for (int x = min_x; x <= max_x; ++x) {
+            for (int y = min_y; y <= max_y; ++y) {
+                int q = 0;
+                for (const auto& t : towers) {
+                    double d = sqrt((t[0] - x) * (t[0] - x) + (t[1] - y) * (t[1] - y));
+                    if (d <= radius) {
+                        q += int(t[2] / (1 + d));
+                    }
+                }
+                if (q > max_quality) {
+                    max_quality = q;
+                    result = {x, y};
+                }
+            }
+        }
+        return result;
+    }
+};