@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+
@@ -0,0 +1,31 @@
+package com.company;
+
+import java.util.*;
+
+// https://www.programcreek.com/2014/05/leetcode-meeting-rooms-ii-java/
+
+public class Main {
+
+    private int meetingRooms(int[][] intervals){
+
+        Arrays.sort(intervals, Comparator.comparing((int[] intv) -> intv[0]));
+
+        PriorityQueue<Integer> heap = new PriorityQueue<>();
+
+        int count = 0;
+
+        for(int[] intv : intervals){
+            if(heap.isEmpty()){
+                count++;
+                heap.offer(intv[1]);
+            } else {
+                if(intv[0] >= heap.peek())
+                    heap.poll();
+                else
+                    count++;
+                heap.offer(intv[1]);
+            }
+        }
+        return count;
+    }
+}