Create minimum-rectangles-to-cover-points.cpp

Author: kamyu104

C++/minimum-rectangles-to-cover-points.cpp

@@ -0,0 +1,22 @@
+// Time:  O(nlogn)
+// Space: O(n)
+
+// sort, greedy
+class Solution {
+public:
+    int minRectanglesToCoverPoints(vector<vector<int>>& points, int w) {
+        sort(begin(points), end(points), [](const auto& a, const auto& b) {
+            return a[0] < b[0];
+        });
+        int result = 0;
+        int left = -(w + 1);
+        for (const auto& p : points) {
+            if (p[0] - left <= w) {
+                continue;
+            }
+            left = p[0];
+            ++result;
+        }
+        return result;
+    }
+};