백준 5430번 AC

문제 링크: https://www.acmicpc.net/problem/5430

Author: skysign

백준 5430번 AC/main.py

@@ -0,0 +1,41 @@
+import sys
+from collections import deque
+from typing import Deque
+
+
+def solve():
+    T = int(sys.stdin.readline().strip())
+
+    for _ in range(T):
+        fs = sys.stdin.readline().strip()
+        _ = int(sys.stdin.readline().strip())
+        line = sys.stdin.readline().strip()
+        line = line[1:-1]
+        dts: Deque = deque(map(int, line.split(','))) if line != '' else deque([])
+
+        error: bool = False
+        reverse: bool = False
+
+        for f in fs:
+            if f == 'R':
+                reverse = not reverse
+            elif f == 'D':
+                if len(dts) > 0:
+                    if reverse:
+                        dts.pop()
+                    else:
+                        dts.popleft()
+                elif len(dts) == 0:
+                    error = True
+                    break
+
+        if error:
+            print('error')
+        else:
+            if reverse:
+                dts.reverse()
+            print('[' + ','.join(map(str, dts)) + ']')
+
+
+if __name__ == '__main__':
+    solve()

백준 5430번 AC/test1.txt

@@ -0,0 +1,13 @@
+4
+RDD
+4
+[1,2,3,4]
+DD
+1
+[42]
+RRD
+6
+[1,1,2,3,5,8]
+D
+0
+[]

백준 5430번 AC/test1_answer.txt

@@ -0,0 +1,4 @@
+[2,1]
+error
+[1,2,3,5,8]
+error

백준 5430번 AC/test_main.py

@@ -0,0 +1,23 @@
+import sys
+from pathlib import Path
+from unittest import TestCase
+from main import solve
+
+
+class Test(TestCase):
+    def my_solve(self, testcase_input):
+        sys.stdin = open(testcase_input, 'r')
+        stdout = sys.stdout
+        sys.stdout = open('stdout.txt', 'w')
+        solve()
+        sys.stdout.close()
+        sys.stdout = stdout
+
+    def test_solve(self, testcase_number: str):
+        self.my_solve('test' + testcase_number + '.txt')
+        self.assertEqual(
+            Path('test' + testcase_number + '_answer.txt').read_text().strip(),
+            Path('stdout.txt').read_text().strip())
+
+    def test1_solve(self):
+        self.test_solve('1')