add: 按分隔符拆分字符串

README.md

@@ -165,6 +165,10 @@ Rust标准库`std::collections`提供了4种通用容器类型，包含一下8
 
 ### 数组/队列/集合/映射
 
+- [按分隔符拆分字符串](src/array/split_strings_by_separator.rs)  [数组, 字符串]
+
+  - LeetCode 2788. 按分隔符拆分字符串 <https://leetcode.cn/problems/split-strings-by-separator>
+
 - [最大字符串配对数目](src/array/find_maximum_number_of_string_pairs.rs)  [数组, 哈希表, 字符串, 模拟]
 
   - LeetCode 2744. 最大字符串配对数目 <https://leetcode.cn/problems/find-maximum-number-of-string-pairs>

src/array/mod.rs

@@ -56,3 +56,4 @@ pub mod maximum_profit_of_operating_a_centennial_wheel;
 pub mod number_of_boomerangs;
 pub mod count_common_words_with_one_occurrence;
 pub mod find_maximum_number_of_string_pairs;
+pub mod split_strings_by_separator;

src/array/split_strings_by_separator.rs

@@ -0,0 +1,20 @@
+// 按分隔符拆分字符串
+// https://leetcode.cn/problems/split-strings-by-separator
+// INLINE  ../../images/array/split_strings_by_separator.jpeg
+
+pub struct Solution;
+
+impl Solution {
+    pub fn split_words_by_separator(words: Vec<String>, separator: char) -> Vec<String> {
+        let mut res: Vec<String> = Vec::new();
+        for word in words {
+            let ss = word.split(separator);
+            for sub in ss {
+                if !sub.is_empty() {
+                    res.push(sub.to_string());
+                }
+            }
+        }
+        res
+    }
+}

tests/array/mod.rs

@@ -56,3 +56,4 @@ pub mod the_employee_that_worked_on_the_longest_task_test;
 pub mod two_sum_test;
 pub mod zero_matrix_lcci_test;
 pub mod find_maximum_number_of_string_pairs_test;
+pub mod split_strings_by_separator_test;

tests/array/split_strings_by_separator_test.rs

@@ -0,0 +1,56 @@
+use rust_practice::array::split_strings_by_separator::Solution;
+
+#[test]
+fn split_words_by_separator_test() {
+    // 示例 1：
+    // 输入：words = ["one.two.three","four.five","six"], separator = "."
+    // 输出：["one","two","three","four","five","six"]
+    // 解释：在本示例中，我们进行下述拆分：
+
+    // "one.two.three" 拆分为 "one", "two", "three"
+    // "four.five" 拆分为 "four", "five"
+    // "six" 拆分为 "six"
+
+    // 因此，结果数组为 ["one","two","three","four","five","six"] 。
+    let words = vec![
+        "one.two.three".to_string(),
+        "four.five".to_string(),
+        "six".to_string(),
+    ];
+    let separator = '.';
+    let result = Solution::split_words_by_separator(words, separator);
+    assert_eq!(
+        result,
+        vec![
+            "one".to_string(),
+            "two".to_string(),
+            "three".to_string(),
+            "four".to_string(),
+            "five".to_string(),
+            "six".to_string(),
+        ]
+    );
+
+    // 示例 2：
+    // 输入：words = ["$easy$","$problem$"], separator = "$"
+    // 输出：["easy","problem"]
+    // 解释：在本示例中，我们进行下述拆分：
+
+    // "$easy$" 拆分为 "easy"（不包括空字符串）
+    // "$problem$" 拆分为 "problem"（不包括空字符串）
+
+    // 因此，结果数组为 ["easy","problem"] 。
+    let words = vec!["$easy$".to_string(), "$problem$".to_string()];
+    let separator = '$';
+    let result = Solution::split_words_by_separator(words, separator);
+    assert_eq!(result, vec!["easy".to_string(), "problem".to_string()]);
+
+    // 示例 3：
+    // 输入：words = ["|||"], separator = "|"
+    // 输出：[]
+    // 解释：在本示例中，"|||" 的拆分结果将只包含一些空字符串，所以我们返回一个空数组 [] 。
+    let words = vec!["|||".to_string()];
+    let separator = '|';
+    let result = Solution::split_words_by_separator(words, separator);
+    assert_eq!(result.len(), 0);
+}