solved(python): baekjoon 7579

Author: himitery

baekjoon/python/7579/__init__.py

@@ -0,0 +1,29 @@
+import sys
+
+read = lambda: sys.stdin.readline().rstrip()
+
+
+class Problem:
+    def __init__(self):
+        self.n, self.m = map(int, read().split())
+        self.memories = list(map(int, read().split()))
+        self.weights = list(map(int, read().split()))
+
+    def solve(self) -> None:
+        max_weights = sum(self.weights)
+        dp, maximum = [0 for _ in range(max_weights + 1)], max_weights
+
+        for idx in range(self.n):
+            for weight in range(max_weights, self.weights[idx] - 1, -1):
+                dp[weight] = max(
+                    dp[weight],
+                    dp[weight - self.weights[idx]] + self.memories[idx],
+                )
+                if dp[weight] >= self.m:
+                    maximum = min(maximum, weight)
+
+        print(maximum)
+
+
+if __name__ == "__main__":
+    Problem().solve()

baekjoon/python/7579/main.py

@@ -0,0 +1,12 @@
+[
+  {
+    "input": [
+      "5 60",
+      "30 10 20 35 40",
+      "3 0 3 5 4"
+    ],
+    "expected": [
+      "6"
+    ]
+  }
+]

baekjoon/python/7579/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()