From 02481656966b0a8dfc95cf3c22bcc049660ff7d4 Mon Sep 17 00:00:00 2001
From: Federico Igne <git@federicoigne.com>
Date: Sat, 26 Dec 2020 17:48:38 +0000
Subject: Move Rust exercises in a subdirectory

---
 rust/matching-brackets/src/lib.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 rust/matching-brackets/src/lib.rs

(limited to 'rust/matching-brackets/src')

diff --git a/rust/matching-brackets/src/lib.rs b/rust/matching-brackets/src/lib.rs
new file mode 100644
index 0000000..03e39ca
--- /dev/null
+++ b/rust/matching-brackets/src/lib.rs
@@ -0,0 +1,12 @@
+pub fn brackets_are_balanced(string: &str) -> bool {
+    let mut stack = vec![];
+    for c in string.chars() {
+        match c {
+            '(' => stack.push(((c as u8) + 1) as char),
+            '[' | '{' => stack.push(((c as u8) + 2) as char),
+            ')' | ']' | '}' if stack.pop() != Some(c) => return false,
+            _ => ()
+        }
+    }
+    stack.is_empty()
+}
-- 
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