Added solution for 2315

Author: chirag64

02315. Count Asterisks.rs

@@ -0,0 +1,16 @@
+impl Solution {
+    // Iterate through the string chars and maintain a boolean that keeps a track of whether we are inside a vertical bar pair. If we are not inside a vertical bar pair, count the asterisk for the final result.
+    pub fn count_asterisks(s: String) -> i32 {
+        let mut asterisks = 0;
+        let mut are_we_inside_bar_pair = false;
+        for c in s.chars() {
+            if c == '|' {
+                are_we_inside_bar_pair = !are_we_inside_bar_pair;
+            }
+            if c == '*' && !are_we_inside_bar_pair {
+                asterisks += 1;
+            }
+        }
+        return asterisks;
+    }
+}