feat: add module

Author: jtr109

Cargo.lock

@@ -37,4 +37,5 @@ members = [
     "maximum_gap",
     "search_suggestions_system",
     "max_area_of_island",
+    "interleaving-string",
 ]

Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "interleaving-string"
+version = "0.1.0"
+authors = ["Ryan Li <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

interleaving-string/Cargo.toml

@@ -0,0 +1,7 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}