Add Wikipedia reference link for Trapping Rainwater problem

Arzoo1701 · Arzoo1701 · commit 364bcd94da65 · 2025-10-30T02:04:05.000+05:30
diff --git a/src/main/java/com/thealgorithms/searches/TrappingRainwater.java b/src/main/java/com/thealgorithms/searches/TrappingRainwater.java
@@ -11,6 +11,8 @@
  * 
  * Time Complexity: O(n)
  * Space Complexity: O(1)
+ * 
+ * Reference: https://en.wikipedia.org/wiki/Trapping_rain_water
  */
 public class TrappingRainwater {
 

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,8 @@`
`11`	`11`	`*`
`12`	`12`	`* Time Complexity: O(n)`
`13`	`13`	`* Space Complexity: O(1)`
	`14`	`+ *`
	`15`	`+ * Reference: https://en.wikipedia.org/wiki/Trapping_rain_water`
`14`	`16`	`*/`
`15`	`17`	`public class TrappingRainwater {`
`16`	`18`