update 57 java

yennanliu · Mar 10, 2024 · e7e9cb4 · e7e9cb4
1 parent 0070bd0
commit e7e9cb4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/leetcode_java/src/main/java/LeetCodeJava/Sort/MeetingRooms2.java b/leetcode_java/src/main/java/LeetCodeJava/Sort/MeetingRooms2.java
@@ -99,7 +99,9 @@ public int minMeetingRooms_1(int[][] intervals) {
 
         for (int[] interval : intervals) {
             // There's no overlap, so we can reuse the same room.
+            // peak : Retrieves, but does not remove, the head of this queue, or returns null if this queue is empty.
             if (!minHeap.isEmpty() && interval[0] >= minHeap.peek())
+                // Retrieves and removes the head of this queue,
                 minHeap.poll();
             minHeap.offer(interval[1]);
         }