From d6a492a6872e0e4f3f6de1f032ebe6ce9562e6a5 Mon Sep 17 00:00:00 2001
From: songyc macbook <gitea@gitea>
Date: Sun, 31 Aug 2025 18:35:18 +0900
Subject: [PATCH] 20250831 baekjoon

---
 code_study/Baekjoon/python/11478.py |  7 +++++++
 code_study/Baekjoon/python/1269.py  |  8 ++++++++
 code_study/Baekjoon/python/14425.py | 15 +++++++++++++++
 code_study/Baekjoon/python/7785.py  | 14 ++++++++++++++
 4 files changed, 44 insertions(+)
 create mode 100644 code_study/Baekjoon/python/11478.py
 create mode 100644 code_study/Baekjoon/python/1269.py
 create mode 100644 code_study/Baekjoon/python/14425.py
 create mode 100644 code_study/Baekjoon/python/7785.py

diff --git a/code_study/Baekjoon/python/11478.py b/code_study/Baekjoon/python/11478.py
new file mode 100644
index 0000000..2c39eac
--- /dev/null
+++ b/code_study/Baekjoon/python/11478.py
@@ -0,0 +1,7 @@
+s = input().rstrip()
+substr = set()
+for i in range(len(s)) :
+    for j in range(len(s)-i) :
+        substr.add(s[i:i+j+1])
+
+print(len(substr))
\ No newline at end of file
diff --git a/code_study/Baekjoon/python/1269.py b/code_study/Baekjoon/python/1269.py
new file mode 100644
index 0000000..8a60755
--- /dev/null
+++ b/code_study/Baekjoon/python/1269.py
@@ -0,0 +1,8 @@
+import sys
+input = sys.stdin.readline
+
+input()
+
+A = set(map(int,input().split()))
+B = set(map(int,input().split()))
+print(len(A-B) + len(B-A))
\ No newline at end of file
diff --git a/code_study/Baekjoon/python/14425.py b/code_study/Baekjoon/python/14425.py
new file mode 100644
index 0000000..1a589b6
--- /dev/null
+++ b/code_study/Baekjoon/python/14425.py
@@ -0,0 +1,15 @@
+import sys
+input = sys.stdin.readline
+
+N, M = map(int, input().split())
+hashMap = dict()
+
+for _ in range(N) :
+    hashMap[input().rstrip()] = 1
+
+count = 0
+for _ in range(M) :
+    if input().rstrip() in hashMap :
+        count += 1
+
+print(count)
\ No newline at end of file
diff --git a/code_study/Baekjoon/python/7785.py b/code_study/Baekjoon/python/7785.py
new file mode 100644
index 0000000..fd15f69
--- /dev/null
+++ b/code_study/Baekjoon/python/7785.py
@@ -0,0 +1,14 @@
+import sys
+input = sys.stdin.readline
+
+log = dict()
+for _ in range(int(input())) :
+    name, state = input().rstrip().split()
+    log[name] = state
+
+person = []
+for key in log :
+    if log[key] == "enter" :
+        person.append(key)
+
+print('\n'.join(sorted(person, reverse=True)))
\ No newline at end of file