opt: opt 038

Author: Blankj

note/038/README.md

@@ -2,19 +2,39 @@
 
 ## Description
 
-The count-and-say sequence is the sequence of integers beginning as follows:
+The count-and-say sequence is the sequence of integers with the first five terms as following:
 
-`1, 11, 21, 1211, 111221, ...`
+```
+1. 1
+2. 11
+3. 21
+4. 1211
+5. 111221
 
-`1` is read off as `"one 1"` or `11`.
+```
 
+`1` is read off as `"one 1"` or `11`.
 `11` is read off as `"two 1s"` or `21`.
-
 `21` is read off as `"one 2`, then `one 1"` or `1211`.
 
-Given an integer *n*, generate the *n*<sup>th</sup> sequence.
+Given an integer *n*, generate the *n*th term of the count-and-say sequence.
+
+Note: Each term of the sequence of integers will be represented as a string.
+
+**Example 1:**
 
-Note: The sequence of integers will be represented as a string.
+```
+Input: 1
+Output: "1"
+
+```
+
+**Example 2:**
+
+```
+Input: 4
+Output: "1211"
+```
 
 **Tags:** String