Complete task 3

TaskB03/solution.py

@@ -0,0 +1,19 @@
+import sys
+import re
+
+def solve(lines):
+    print(len(lines))
+    return [l for l in lines if re.search(r"19\d\d r\.", l)]
+
+if __name__ == "__main__":
+    lines = []
+    
+    fp = sys.argv[1]
+    assert("polish_wiki_excerpt" in fp)
+
+    print(fp)
+    with open(fp, encoding="utf-8") as f:
+        lines = f.readlines()
+    sol = solve(lines)
+    with open("./polish_wiki_excerpt.out", 'w', encoding="utf-8") as f:
+        f.writelines(sol)