solved(python): baekjoon 6549

Author: himitery

baekjoon/python/6549/__init__.py

@@ -0,0 +1,34 @@
+import sys
+
+read = lambda: sys.stdin.readline().rstrip()
+
+
+class Problem:
+    def __init__(self):
+        self.cases = []
+
+        while True:
+            case = list(map(int, read().split()))
+            if case[0] == 0:
+                break
+
+            self.cases.append(case[1:])
+
+    def solve(self) -> None:
+        for case in self.cases:
+            stack, case, maximum, index = [], case + [0], 0, 0
+
+            while index < len(case):
+                if not stack or case[stack[-1]] <= case[index]:
+                    stack.append(index)
+                    index += 1
+                else:
+                    top = stack.pop()
+                    width, height = index if not stack else index - stack[-1] - 1, case[top]
+                    maximum = max(maximum, width * height)
+
+            print(maximum)
+
+
+if __name__ == "__main__":
+    Problem().solve()

baekjoon/python/6549/main.py

@@ -0,0 +1,13 @@
+[
+  {
+    "input": [
+      "7 2 1 4 5 1 3 3",
+      "4 1000 1000 1000 1000",
+      "0"
+    ],
+    "expected": [
+      "8",
+      "4000"
+    ]
+  }
+]

baekjoon/python/6549/sample.json

@@ -0,0 +1,36 @@
+import json
+import os.path
+import unittest
+from io import StringIO
+from unittest.mock import patch
+
+from parameterized import parameterized
+
+from main import Problem
+
+
+def load_sample(filename: str):
+    path = os.path.join(os.path.dirname(os.path.abspath(__file__)), filename)
+
+    with open(path, "r") as file:
+        return [(case["input"], case["expected"]) for case in json.load(file)]
+
+
+class TestCase(unittest.TestCase):
+    @parameterized.expand(load_sample("sample.json"))
+    def test_case(self, case: str, expected: list[str]):
+        # When
+        with (
+            patch("sys.stdin.readline", side_effect=case),
+            patch("sys.stdout", new_callable=StringIO) as output,
+        ):
+            Problem().solve()
+
+            result = output.getvalue().rstrip()
+
+        # Then
+        self.assertEqual("\n".join(expected), result)
+
+
+if __name__ == "__main__":
+    unittest.main()