src/bin/count-items-matching-a-rule.rs

Author: bestgopher

Diff for: src/bin/count-items-matching-a-rule.rs

@@ -0,0 +1,19 @@
+#![allow(dead_code, unused, unused_variables, non_snake_case)]
+
+fn main() {}
+
+struct Solution;
+
+impl Solution {
+    pub fn count_matches(items: Vec<Vec<String>>, rule_key: String, rule_value: String) -> i32 {
+        items
+            .into_iter()
+            .filter(|x| match rule_key.as_str() {
+                "type" => x[0] == rule_value,
+                "color" => x[1] == rule_value,
+                "name" => x[2] == rule_value,
+                _ => unreachable!(),
+            })
+            .count() as i32
+    }
+}