Wrote program for Day 3

Week-01/Day-03_Barbecue-Skewers/barbecue_skewers/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "barbecue_skewers"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

Week-01/Day-03_Barbecue-Skewers/barbecue_skewers/src/main.rs

@@ -0,0 +1,57 @@
+fn bbq_skewers(skewers: &'static [&str]) -> (usize, usize) {
+    let mut vegetarian = 0;
+
+    for skewer in skewers {
+        if ! skewer.contains('x') {
+            vegetarian += 1;
+        }
+    }
+
+    return (vegetarian, skewers.len() - vegetarian);
+}
+
+#[test]
+fn test1() {
+    assert_eq!(
+        bbq_skewers(&[
+            "--xo--x--ox--",
+            "--xx--x--xx--",
+            "--oo--o--oo--",
+            "--xx--x--ox--",
+            "--xx--x--ox--"
+        ]),
+        (1, 4)
+    );
+}
+
+#[test]
+fn test2() {
+    assert_eq!(
+        bbq_skewers(&[
+            "--oooo-ooo---",
+            "--xx--x--xx--",
+            "--o---o--oo--",
+            "--xx--x--ox--",
+            "--xx--x--ox--"
+        ]),
+        (2, 3)
+    );
+}
+
+#[test]
+fn test3() {
+    assert_eq!(
+        bbq_skewers(&[
+            "--oooo-ooo--",
+            "--xxxxxxxx--",
+            "--o---",
+            "-o-----o---x--",
+            "--o---o-----"
+        ]),
+        (3, 2)
+    );
+}
+
+fn main() {
+    println!("Run `cargo test`.");
+}