[BOJ] 7785 회사에 있는 사람 (S5)

Author: letthem

심수연/4주차/260123.py

@@ -0,0 +1,18 @@
+# https://www.acmicpc.net/problem/7785
+
+import sys
+input = sys.stdin.readline
+
+N = int(input())
+
+company = set()
+
+for _ in range(N):
+  name, status = input().split()
+  if status == "enter":
+    company.add(name)
+  elif name in company and status == "leave":
+    company.discard(name)
+
+for name in sorted(company, reverse=True):
+  print(name)