3 files changed, 31 insertions, 0 deletions
diff --git a/kattis-open/sperhling/Cargo.lock b/kattis-open/sperhling/Cargo.lock
new file mode 100644
index 0000000..5a98a2d
--- /dev/null
+++ b/kattis-open/sperhling/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "sperhling"
+version = "0.1.0"
diff --git a/kattis-open/sperhling/Cargo.toml b/kattis-open/sperhling/Cargo.toml
new file mode 100644
index 0000000..394fda5
--- /dev/null
+++ b/kattis-open/sperhling/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "sperhling"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/kattis-open/sperhling/src/main.rs b/kattis-open/sperhling/src/main.rs
new file mode 100644
index 0000000..93b1ed1
--- /dev/null
+++ b/kattis-open/sperhling/src/main.rs
@@ -0,0 +1,16 @@
+use std::io::{stdin, BufRead};
+
+fn main() {
+    let stdin = stdin();
+    let mut lines = stdin.lock().lines();
+    let s1 = lines.next().unwrap().unwrap();
+    let s2 = lines.next().unwrap().unwrap();
+
+    let lcp = s1
+        .bytes()
+        .zip(s2.bytes())
+        .take_while(|&(a, b)| a == b)
+        .count();
+
+    println!("{}", s1.len() + s2.len() - 2 * lcp);
+}