diff --git a/src/main/java/g3701_3800/s3781_maximum_score_after_binary_swaps/Solution.java b/src/main/java/g3701_3800/s3781_maximum_score_after_binary_swaps/Solution.java
index 5029d3fec..f1b927874 100644
--- a/src/main/java/g3701_3800/s3781_maximum_score_after_binary_swaps/Solution.java
+++ b/src/main/java/g3701_3800/s3781_maximum_score_after_binary_swaps/Solution.java
@@ -8,7 +8,7 @@
 public class Solution {
     public long maximumScore(int[] nums, String s) {
         long sum = 0;
-        PriorityQueue<Integer> pq = new PriorityQueue<>((a, b) -> b - a);
+        PriorityQueue<Integer> pq = new PriorityQueue<>((a, b) -> Integer.compare(b, a));
         for (int i = 0; i < nums.length; i++) {
             if (s.charAt(i) == '1') {
                 if (pq.isEmpty() || pq.peek() <= nums[i]) {
diff --git a/src/main/java/g3801_3900/s3885_design_event_manager/EventManager.java b/src/main/java/g3801_3900/s3885_design_event_manager/EventManager.java
index 2a8a13fb6..e18746976 100644
--- a/src/main/java/g3801_3900/s3885_design_event_manager/EventManager.java
+++ b/src/main/java/g3801_3900/s3885_design_event_manager/EventManager.java
@@ -16,9 +16,9 @@ public EventManager(int[][] events) {
                 new PriorityQueue<>(
                         (a, b) -> {
                             if (a.priority != b.priority) {
-                                return b.priority - a.priority;
+                                return Integer.compare(b.priority, a.priority);
                             }
-                            return a.id - b.id;
+                            return Integer.compare(a.id, b.id);
                         });
         for (int[] event : events) {
             pq.add(new Pair(event[0], event[1]));