Add 1431-kids-with-the-greatest-number-of-candies to topics.

Author: JeonJe

README.md

@@ -52,6 +52,7 @@
 | [0136-single-number](https://github.com/JeonJe/Algorithm/tree/main/0136-single-number/) | Easy |
 | [0169-majority-element](https://github.com/JeonJe/Algorithm/tree/main/0169-majority-element/) | Easy |
 | [1391-check-if-there-is-a-valid-path-in-a-grid](https://github.com/JeonJe/Algorithm/tree/main/1391-check-if-there-is-a-valid-path-in-a-grid/) | Medium |
+| [1431-kids-with-the-greatest-number-of-candies](https://github.com/JeonJe/Algorithm/tree/main/1431-kids-with-the-greatest-number-of-candies/) | Easy |
 | [2515-shortest-distance-to-target-string-in-a-circular-array](https://github.com/JeonJe/Algorithm/tree/main/2515-shortest-distance-to-target-string-in-a-circular-array/) | Easy |
 ## Dynamic Programming
 | Problem Name | Difficulty |