diff --git "a/leetcode3/\353\202\250\355\232\250\354\240\225/636. Exclusive Time of Functions.py" "b/leetcode3/\353\202\250\355\232\250\354\240\225/636. Exclusive Time of Functions.py"
new file mode 100644
index 00000000..0907c8cf
--- /dev/null
+++ "b/leetcode3/\353\202\250\355\232\250\354\240\225/636. Exclusive Time of Functions.py"	
@@ -0,0 +1,27 @@
+# 풀이 실패
+class Solution:
+    def exclusiveTime(self, n: int, logs: List[str]) -> List[int]:
+        res = [0] * n
+        stack = []
+        prev_time = 0
+
+        for log in logs:
+            fn_id_str, typ, timestamp_str = log.split(":")
+            fn_id, curr_time = int(fn_id_str), int(timestamp_str)
+
+            if typ == "start":
+                # 이미 실행 중인게 있으면 실행시간 누적
+                # 이전 함수가 prev_time ~ curr_time - 1까지 수행되었음
+                if stack:
+                    res[stack[-1]] += curr_time - prev_time
+
+                stack.append(fn_id)
+                prev_time = curr_time
+            else:
+                popped_id = stack.pop()
+                res[popped_id] += curr_time - prev_time + 1
+
+                # 타임스탬프 끝까지 차지하므로 다음 시작점은 +1임
+                prev_time = curr_time + 1
+        
+        return res
\ No newline at end of file