solved(python): baekjoon 2473

Author: himitery

baekjoon/python/2473/__init__.py

@@ -0,0 +1,32 @@
+import math
+import sys
+
+read = lambda: sys.stdin.readline().rstrip()
+
+
+class Problem:
+    def __init__(self):
+        self.n = int(read())
+        self.data = list(map(int, read().split()))
+
+    def solve(self) -> None:
+        data, minimum = sorted(self.data[:]), (math.inf, [])
+
+        for num in range(self.n - 2):
+            left, right = num + 1, self.n - 1
+
+            while left < right:
+                value = data[num] + data[left] + data[right]
+                if abs(value) < minimum[0]:
+                    minimum = (abs(value), [data[num], data[left], data[right]])
+
+                if value < 0:
+                    left += 1
+                else:
+                    right -= 1
+
+        print(*minimum[1])
+
+
+if __name__ == "__main__":
+    Problem().solve()

baekjoon/python/2473/main.py

@@ -0,0 +1,20 @@
+[
+  {
+    "input": [
+      "5",
+      "-2 6 -97 -6 98"
+    ],
+    "expected": [
+      "-97 -2 98"
+    ]
+  },
+  {
+    "input": [
+      "7",
+      "-2 -3 -24 -6 98 100 61"
+    ],
+    "expected": [
+      "-6 -3 -2"
+    ]
+  }
+]

baekjoon/python/2473/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()