Add solution #744

Author: JoshCrozier

README.md

@@ -273,6 +273,7 @@
 733|[Flood Fill](./0733-flood-fill.js)|Easy|
 735|[Asteroid Collision](./0735-asteroid-collision.js)|Medium|
 739|[Daily Temperatures](./0739-daily-temperatures.js)|Medium|
+744|[Find Smallest Letter Greater Than Target](./0744-find-smallest-letter-greater-than-target.js)|Easy|
 745|[Prefix and Suffix Search](./0745-prefix-and-suffix-search.js)|Hard|
 746|[Min Cost Climbing Stairs](./0746-min-cost-climbing-stairs.js)|Easy|
 747|[Largest Number At Least Twice of Others](./0747-largest-number-at-least-twice-of-others.js)|Easy|

solutions/0744-find-smallest-letter-greater-than-target.js

@@ -0,0 +1,20 @@
+/**
+ * 744. Find Smallest Letter Greater Than Target
+ * https://leetcode.com/problems/find-smallest-letter-greater-than-target/
+ * Difficulty: Easy
+ *
+ * You are given an array of characters letters that is sorted in non-decreasing order,
+ * and a character target. There are at least two different characters in letters.
+ *
+ * Return the smallest character in letters that is lexicographically greater than target.
+ * If such a character does not exist, return the first character in letters.
+ */
+
+/**
+ * @param {character[]} letters
+ * @param {character} target
+ * @return {character}
+ */
+var nextGreatestLetter = function(letters, target) {
+  return letters.find(l => l > target) || letters[0];
+};