1 files changed, 12 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..6befee8
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,12 @@
+
+pub fn read_file(day: u8) -> String {
+    let filename = format!("inputs/day{}", day);
+    std::fs::read_to_string(filename).unwrap()
+}
+
+pub fn read_numbers(day: u8) -> Vec<usize> {
+    read_file(day).split('\n')
+                  .filter(|n| !n.is_empty())
+                  .map(|n| n.parse::<usize>().unwrap())
+                  .collect()
+}