Mark 'Longest word in a sentence' as completed

sayampradhan · web-flow · commit cb417f545371 · 2026-03-22T21:13:40.000+05:30
diff --git a/phase-3-data-structures/readme.md b/phase-3-data-structures/readme.md
@@ -53,7 +53,7 @@ This phase introduces the **first true data structures** and trains the mind to
 
 - [x] Check anagram  
 - [x] Reverse string without built-in reverse  
-- [ ] Longest word in a sentence  
+- [x] Longest word in a sentence  
 - [ ] Count vowels and consonants  
 - [ ] Remove spaces  
 - [ ] Check substring manually  
