solved(python): baekjoon 1106

Author: himitery

baekjoon/python/1106/__init__.py

@@ -0,0 +1,23 @@
+import math
+import sys
+
+read = lambda: sys.stdin.readline().rstrip()
+
+
+class Problem:
+    def __init__(self):
+        self.c, self.n = map(int, read().split())
+        self.cases = [list(map(int, read().split())) for _ in range(self.n)]
+
+    def solve(self) -> None:
+        dp = [0 if idx == 0 else math.inf for idx in range(self.c + 101)]
+
+        for cost, customer in self.cases:
+            for idx in range(customer, self.c + 101):
+                dp[idx] = min(dp[idx], dp[idx - customer] + cost)
+
+        print(min(dp[self.c :]))
+
+
+if __name__ == "__main__":
+    Problem().solve()

baekjoon/python/1106/main.py

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+[
+  {
+    "input": [
+      "12 2",
+      "3 5",
+      "1 1"
+    ],
+    "expected": [
+      "8"
+    ]
+  },
+  {
+    "input": [
+      "10 3",
+      "3 1",
+      "2 2",
+      "1 3"
+    ],
+    "expected": [
+      "4"
+    ]
+  },
+  {
+    "input": [
+      "10 10",
+      "1 1",
+      "2 2",
+      "3 3",
+      "4 4",
+      "5 5",
+      "6 6",
+      "7 7",
+      "8 8",
+      "9 9",
+      "10 10"
+    ],
+    "expected": [
+      "10"
+    ]
+  },
+  {
+    "input": [
+      "100 6",
+      "4 9",
+      "9 11",
+      "3 4",
+      "8 7",
+      "1 2",
+      "9 8"
+    ],
+    "expected": [
+      "45"
+    ]
+  }
+]

baekjoon/python/1106/sample.json

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+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()