20240914 finished.

src/problem/mod.rs

@@ -235,3 +235,4 @@ mod p2552_count_increasing_quadruplets;
 mod p2555_maximize_win_from_two_segments;
 mod p2576_find_the_maximum_number_of_marked_indices;
 mod p2398_maximum_number_of_robots_within_budget;
+mod p2390_removing_stars_from_a_string;

src/problem/p2390_removing_stars_from_a_string.rs

@@ -0,0 +1,41 @@
+/**
+ * [2390] Removing Stars From a String
+ */
+pub struct Solution {}
+
+
+// submission codes start here
+
+impl Solution {
+    pub fn remove_stars(s: String) -> String {
+        let s : Vec<char> = s.chars().collect();
+        
+        let mut result = Vec::with_capacity(s.len());
+        
+        for i in s {
+            match i { 
+                '*' => {
+                result.pop(); 
+                }
+                _ => {
+                    result.push(i);
+                }
+            }
+        }
+        
+        result.iter().collect()
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2390() {
+        assert_eq!("lecoe".to_owned(), Solution::remove_stars("leet**cod*e".to_owned()));
+        assert_eq!("".to_owned(), Solution::remove_stars("erase*****".to_owned()));
+    }
+}