From d38746c3b68f139fb2f6df78a219c2577fc0338c Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom.smeding@gmail.com>
Date: Wed, 5 Dec 2018 13:15:03 +0100
Subject: Day 5 + benchmarking
---
2018/src/day1.rs | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to '2018/src/day1.rs')
diff --git a/2018/src/day1.rs b/2018/src/day1.rs
index 741f5b3..b86387b 100644
--- a/2018/src/day1.rs
+++ b/2018/src/day1.rs
@@ -2,11 +2,11 @@ use std::io;
use std::io::BufRead;
use std::collections::HashSet;
-pub fn main<T: BufRead>(reader: T) -> io::Result<()> {
+pub fn main<T: BufRead>(reader: T) -> io::Result<(String, String)> {
let values: Vec<i64> =
reader.lines().map(|l| l.unwrap().parse::<i64>().unwrap()).collect();
- println!("{}", values.iter().sum::<i64>());
+ let part1 = values.iter().sum::<i64>();
let mut seen = HashSet::new();
seen.insert(0);
@@ -15,11 +15,11 @@ pub fn main<T: BufRead>(reader: T) -> io::Result<()> {
for val in values.iter().cycle() {
res += val;
if seen.contains(&res) {
- println!("{}", res);
- return Ok(());
+ return Ok((part1.to_string(), res.to_string()));
} else {
seen.insert(res);
}
}
- unreachable!()
+
+ Err(io::Error::new(io::ErrorKind::Other, "Invalid input"))
}
--
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