Merge pull request larymak#262 from Sonia-Sandler/main

Add len_nth_word_from_end

Author: larymak

Data Structures and Algorithms/len_nth_word_from_end.py

@@ -0,0 +1,19 @@
+# checks the length of the nth word from the end using split
+def len_nth_word_from_end(str, num):
+  ls = str.split(" ")
+  plc = -1
+  word_num = 0
+  while plc >= -1 * len(ls):
+    # accounts for a variable number of whitespaces between words
+    if ls[plc] != '':
+      word_num += 1
+    if word_num == num:
+      return len(ls[plc])
+    else:
+      plc -= 1
+  else:
+    return -1
+
+s = "fly  me  to    the moon "
+print(len_nth_word_from_end(s, 3))
+print(len_nth_word_from_end(s, 6))