add 3838

Author: fishercoder1534

paginated_contents/algorithms/4th_thousand/README.md

@@ -21,6 +21,7 @@
 | 3913 | [Sort Vowels by Frequency](https://leetcode.com/problems/sort-vowels-by-frequency/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3913.java) |                                                                               | Easy       |
 | 3912 | [Valid Elements in an Array](https://leetcode.com/problems/valid-elements-in-an-array/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3912.java) |                                                                               | Easy       |
 | 3908 | [Valid Digit Number](https://leetcode.com/problems/valid-digit-number/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3908.java) |                                                                               | Easy       |
+| 3838 | [Weighted Word Mapping](https://leetcode.com/problems/weighted-word-mapping/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3838.java) |                                                                               | Easy       |
 | 3813 | [Vowel-Consonant Score](https://leetcode.com/problems/vowel-consonant-score/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3813.java) |                                                                               | Easy       |
 | 3701 | [Compute Alternating Sum](https://leetcode.com/problems/compute-alternating-sum/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3701.java) |                                                                               | Easy       |
 | 3662 | [Filter Characters by Frequency](https://leetcode.com/problems/filter-characters-by-frequency/)                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3662.java) |                                                                               | Easy       |

src/main/java/com/fishercoder/solutions/fourththousand/_3838.java

@@ -0,0 +1,21 @@
+package com.fishercoder.solutions.fourththousand;
+
+public class _3838 {
+    public static class Solution1 {
+        public String mapWordWeights(String[] words, int[] weights) {
+            char[] chars = new char[]{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
+            chars = new StringBuilder(new String(chars)).reverse().toString().toCharArray();
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < words.length; i++) {
+                String word = words[i];
+                int sum = 0;
+                for (char c : word.toCharArray()) {
+                    sum += weights[c - 'a'];
+                }
+                sum %= 26;
+                sb.append(chars[sum]);
+            }
+            return sb.toString();
+        }
+    }
+}