refactor

1 files changed, 27 insertions, 0 deletions

diff --git a/src/2020/1/mod.rs b/src/2020/1/mod.rs
new file mode 100644
index 0000000..8aa5290
--- /dev/null
+++ b/src/2020/1/mod.rs
@@ -0,0 +1,27 @@
+pub fn part1() -> anyhow::Result<()> {
+    let ints = crate::util::read_ints("data/1.txt")?;
+    for i in &ints {
+        for j in &ints {
+            if i + j == 2020 {
+                println!("{} * {} = {}", i, j, i * j);
+                return Ok(());
+            }
+        }
+    }
+    Err(anyhow::anyhow!("no numbers summing to 2020 found"))
+}
+
+pub fn part2() -> anyhow::Result<()> {
+    let ints = crate::util::read_ints("data/1.txt")?;
+    for i in &ints {
+        for j in &ints {
+            for k in &ints {
+                if i + j + k == 2020 {
+                    println!("{} * {} * {} = {}", i, j, k, i * j * k);
+                    return Ok(());
+                }
+            }
+        }
+    }
+    Err(anyhow::anyhow!("no numbers summing to 2020 found"))
+}