exercises.md

exercises.md

@@ -9,33 +9,36 @@ If you want to be really stylish, put your code inside of backticks like this:
 
 `cat words_100k.txt | length | put 10 | equal | count`
 
-## 1. What is the longest word?
+## 1. What is the longest word? antidisestablishmentarianism
+# $ cat words_100k.txt | length | order | tail -n 1 | pluck 1
 
+## 2. How many words have two u's in a row? 16
+# $ cat words_100k.txt | match "uu" | count
 
-## 2. How many words have two u's in a row?
-
-
-## 3. How many words have the word "cat" in them?
-
-
-## 4. How many words have all five vowels (aeiou)?
+## 3. How many words have the word "cat" in them? 893
+# $ cat words_100k.txt | match "cat" | count
 
+## 4. How many words have all five vowels (aeiou)? 812
+# $ cat words_100k.txt | match "a" | match "e" | match "i" | match "o" | match "u" | count
 
 ## 5. Which words have two e's in a row, two o's in a row, and two k's in a row? (they don't have to be in that order)
+# bookkeeper
+# bookkeepers
+# bookkeeping
+# $ cat words_100k.txt | match "ee" | match "oo" | match "kk"
 
+## 6. How many words have sixteen or more letters? 696
+# $ cat words_100k.txt | length | order | put 15 | lessthan 0 1 | count
 
-## 6. How many words have sixteen or more letters?
+## 7. What's the most frequent 10-letter word? government
+# $ cat words_100k.txt | length | put 10 | equal 0 1 | pluck 2 | frequency | order -r | head -n 1 | pluck 1
 
+## 8. What's the longest word which doesn't have any repeated letters? unproblematic
+# $ cat words_100k.txt | length | unique 1 | length | equal 0 2 | pluck 3 | length | order -r | head -n 1 | pluck 1
 
-## 7. What's the most frequent 10-letter word?
-
-
-## 8. What's the longest word which doesn't have any repeated letters?
-
-
-## 9. What's the longest word which only uses four different letters?
-
-
-## 10. If you rearrange the letters in "sidebar," what other words can you create?
+## 9. What's the longest word which only uses four different letters? senselessness
+# $ cat words_100k.txt | length | unique 1 | length | put 4 | equal 0 1 | pluck 4 | length | order -r | head -n 1 | pluck 1
 
+## 10. If you rearrange (all) the letters in "sidebar," what other words can you create? braised seabird
+# $ cat words_100k.txt | length | put 7 | equal 0 1 | pluck 2 | match "s" | match "i" | match "d" | match "e" | match "b" | match "a" | match "r"