baekjoon 20250318

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)

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)