diff --git "a/leetcode3/\354\235\264\354\247\204\355\235\254/636. Exclusive Time of Functions.java" "b/leetcode3/\354\235\264\354\247\204\355\235\254/636. Exclusive Time of Functions.java"
new file mode 100644
index 00000000..3a80a5eb
--- /dev/null
+++ "b/leetcode3/\354\235\264\354\247\204\355\235\254/636. Exclusive Time of Functions.java"	
@@ -0,0 +1,31 @@
+class Solution {
+    public int[] exclusiveTime(int n, List<String> logs) {
+        int[] answer = new int[n];
+        Deque<Integer> stack = new ArrayDeque<>();
+
+        int prevTime = 0;
+
+        for (String log : logs) {
+            String[] parts = log.split(":");
+
+            int id = Integer.parseInt(parts[0]);
+            String type = parts[1];
+            int time = Integer.parseInt(parts[2]);
+
+            if (type.equals("start")) {
+                if (!stack.isEmpty()) {
+                    answer[stack.peek()] += time - prevTime;
+                }
+
+                stack.push(id);
+                prevTime = time;
+
+            } else { 
+                answer[stack.pop()] += time - prevTime + 1;
+                prevTime = time + 1;
+            }
+        }
+
+        return answer;
+    }
+}
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