From cf22c464a3aa6cbcc1c3be07945e50ca10f3025e Mon Sep 17 00:00:00 2001
From: songyc macbook <gitea@gitea>
Date: Wed, 18 Mar 2026 21:59:42 +0900
Subject: [PATCH] baekjoon 20260316

---
 code_study/Baekjoon/python/17387.py | 40 +++++++++++++++++++++++++++++
 code_study/Baekjoon/python/2875.py  |  7 +++++
 2 files changed, 47 insertions(+)
 create mode 100644 code_study/Baekjoon/python/17387.py
 create mode 100644 code_study/Baekjoon/python/2875.py

diff --git a/code_study/Baekjoon/python/17387.py b/code_study/Baekjoon/python/17387.py
new file mode 100644
index 0000000..3b64f82
--- /dev/null
+++ b/code_study/Baekjoon/python/17387.py
@@ -0,0 +1,40 @@
+def compare(A, B) :
+    if A[0] < B[0] :
+        return True
+    elif A[0] == B[0] :
+        return A[1] <= B[1]
+    else :
+        return False
+
+def crossProduct(A, B, C) :
+    crossValue = (B[0] - A[0]) * (C[1] - A[1]) - (B[1] - A[1]) * (C[0] - A[0])
+    if crossValue > 0 :
+        return 1
+    elif crossValue < 0 :
+        return -1
+    else :
+        return 0
+
+x1, y1, x2, y2 = map(int, input().split())
+x3, y3, x4, y4 = map(int, input().split())
+
+A, B, C, D = [x1, y1], [x2, y2], [x3, y3], [x4, y4]
+if not compare(A, B) :
+    A, B = B, A
+
+if not compare(C, D) :
+    C, D = D, C
+
+crossABCD = crossProduct(A, B, C) * crossProduct(A, B, D)
+crossCDAB = crossProduct(C, D, A) * crossProduct(C, D, B)
+
+ans = 0
+
+if crossABCD == 0 and crossCDAB == 0 :
+    if compare(A, D) and compare(C, B) :
+        ans = 1
+
+elif crossABCD <= 0 and crossCDAB <= 0 :
+    ans = 1
+
+print(ans)
\ No newline at end of file
diff --git a/code_study/Baekjoon/python/2875.py b/code_study/Baekjoon/python/2875.py
new file mode 100644
index 0000000..a26da91
--- /dev/null
+++ b/code_study/Baekjoon/python/2875.py
@@ -0,0 +1,7 @@
+n, m, k = map(int, input().split())
+ans = 0
+
+while n >= 2 and m >= 1 and (n+m) >= k + 3 :
+    n, m , ans = n-2, m-1, ans+1
+
+print(ans)
\ No newline at end of file