Data commit

Task/Longest-string-challenge/Python/longest-string-challenge.py

@@ -0,0 +1,22 @@
+import fileinput
+
+# This returns True if the second string has a value on the
+# same index as the last index of the first string. It runs
+# faster than trimming the strings because it runs len once
+# and is a single index lookup versus slicing both strings
+# one character at a time.
+def longer(a, b):
+    try:
+        b[len(a)-1]
+        return False
+    except:
+        return True
+
+longest, lines = '', ''
+for x in fileinput.input():
+    if longer(x, longest):
+        lines, longest = x, x
+    elif not longer(longest, x):
+        lines += x
+
+print(lines, end='')