20250324 finished.

src/problem/mod.rs

@@ -556,3 +556,5 @@ mod p2680_maximum_or;
 mod p2643_row_with_maximum_ones;
 
 mod p2116_check_if_a_parentheses_string_can_be_valid;
+
+mod p2255_count_prefixes_of_a_given_string;

src/problem/p2255_count_prefixes_of_a_given_string.rs

@@ -0,0 +1,34 @@
+/**
+ * [2255] Count Prefixes of a Given String
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn count_prefixes(words: Vec<String>, s: String) -> i32 {
+        words.iter().filter(|i| s.starts_with(i.as_str())).count() as i32
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2255() {
+        assert_eq!(
+            3,
+            Solution::count_prefixes(
+                vec_string!("a", "b", "c", "ab", "bc", "abc"),
+                "abc".to_owned()
+            )
+        );
+        assert_eq!(
+            2,
+            Solution::count_prefixes(vec_string!("a", "a"), "aa".to_owned())
+        );
+    }
+}