Solve fizz-buzz.

source/fizz_buzz/mod.rs

@@ -0,0 +1,16 @@
+pub fn fizz_buzz(number: i32) -> Vec<String> {
+  let mut result = vec![];
+
+  for index in 1..=number {
+    let string = match (index % 3 == 0, index % 5 == 0) {
+      (true, true) => "FizzBuzz".to_string(),
+      (true, false) => "Fizz".to_string(),
+      (false, true) => "Buzz".to_string(),
+      (false, false) => index.to_string(),
+    };
+
+    result.push(string);
+  }
+
+  result
+}

source/lib.rs

@@ -3,6 +3,7 @@ pub mod contains_duplicate;
 pub mod contains_duplicate_ii;
 pub mod excel_sheet_column_number;
 pub mod excel_sheet_column_title;
+pub mod fizz_buzz;
 pub mod implement_strstr;
 pub mod integer_to_roman;
 pub mod isomorphic_strings;

tests/fizz_buzz.rs

@@ -0,0 +1,15 @@
+use leetcode::fizz_buzz::fizz_buzz;
+
+use test_case::test_case;
+
+const EXAMPLE_3: &[&str] = &[
+  "1", "2", "Fizz", "4", "Buzz", "Fizz", "7", "8", "Fizz", "Buzz", "11",
+  "Fizz", "13", "14", "FizzBuzz",
+];
+
+#[test_case(3, &["1", "2", "Fizz"]; "example 1")]
+#[test_case(5, &["1", "2", "Fizz", "4", "Buzz"]; "example 2")]
+#[test_case(15, EXAMPLE_3; "example 3")]
+fn test_fizz_buzz(input: i32, expected: &[&str]) {
+  assert_eq!(fizz_buzz(input), expected);
+}