Day 1

1 files changed, 10 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index e7a11a9..0c24a73 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,12 @@
+use std::io;
+use std::io::prelude::*;
+
 fn main() {
-    println!("Hello, world!");
+    let stdin = io::stdin();
+    let answer = string_length_sum(stdin.lock().lines().map(|l| l.unwrap()));
+    dbg!(answer);
+}
+
+fn string_length_sum(it: impl Iterator<Item = String>) -> usize {
+    it.map(|l| l.len()).sum()
 }