Better timing logs in previous days

day01/src/main.rs

@@ -1,9 +1,10 @@
-use anyhow::{anyhow, Result};
-
 use std::collections::HashSet;
 use std::fs::File;
 use std::io::prelude::*;
 use std::io::BufReader;
+use std::time::Instant;
+
+use anyhow::{anyhow, Result};
 
 const INPUT: &str = "input/input.txt";
 
@@ -44,8 +45,13 @@ fn solve_part2(input_path: &str) -> Result<i32> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day02/src/main.rs

@@ -1,10 +1,11 @@
-use anyhow::{Context, Error, Result};
-
 use std::fs::File;
 use std::io::prelude::*;
 use std::io::BufReader;
 use std::ops::RangeInclusive;
 use std::str::FromStr;
+use std::time::Instant;
+
+use anyhow::{Context, Error, Result};
 
 const INPUT: &str = "input/input.txt";
 
@@ -106,8 +107,13 @@ fn solve_part2(input_path: &str) -> Result<usize> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day03/src/main.rs

@@ -1,9 +1,10 @@
-use anyhow::Result;
-
 use std::fmt;
 use std::fs::File;
 use std::io::prelude::*;
 use std::io::BufReader;
+use std::time::Instant;
+
+use anyhow::Result;
 
 const INPUT: &str = "input/input.txt";
 
@@ -117,8 +118,13 @@ fn solve_part2(input_path: &str) -> Result<usize> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day04/src/main.rs

@@ -1,9 +1,10 @@
-use anyhow::{anyhow, Context, Error, Result};
-
 use std::fmt;
 use std::fs::File;
 use std::io::{BufRead, BufReader};
 use std::str::FromStr;
+use std::time::Instant;
+
+use anyhow::{anyhow, Context, Error, Result};
 
 const INPUT: &str = "input/input.txt";
 
@@ -213,8 +214,13 @@ fn solve_part2(input_path: &str) -> Result<usize> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day05/src/main.rs

@@ -1,9 +1,10 @@
-use anyhow::{anyhow, Error, Result};
-
 use std::fs::File;
 use std::io::prelude::*;
 use std::io::BufReader;
 use std::str::FromStr;
+use std::time::Instant;
+
+use anyhow::{anyhow, Error, Result};
 
 const INPUT: &str = "input/input.txt";
 
@@ -73,8 +74,13 @@ fn solve_part2(input_path: &str) -> Result<u32> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day06/src/main.rs

@@ -1,7 +1,8 @@
-use anyhow::Result;
-
 use std::collections::{HashMap, HashSet};
 use std::fs::read_to_string;
+use std::time::Instant;
+
+use anyhow::Result;
 
 const INPUT: &str = "input/input.txt";
 
@@ -44,8 +45,13 @@ fn solve_part2(input_path: &str) -> Result<usize> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day07/src/main.rs

@@ -5,6 +5,7 @@ extern crate maplit;
 use std::collections::{HashMap, HashSet};
 use std::fs::File;
 use std::io::{BufRead, BufReader};
+use std::time::Instant;
 
 use anyhow::{anyhow, Result};
 use regex::Regex;
@@ -125,8 +126,13 @@ fn solve_part2(input_path: &str) -> Result<u32> {
 }
 
 fn main() {
+    let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
+    now = Instant::now();
+    println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
+    println!("(elapsed: {:?})", now.elapsed());
 }
 
 #[cfg(test)]

day08/src/main.rs

@@ -112,17 +112,11 @@ fn solve_part2(input_path: &str) -> Result<i32> {
 fn main() {
     let mut now = Instant::now();
     println!("Part 1: {}", solve_part1(INPUT).unwrap());
-    println!(
+    println!("(elapsed: {:?})", now.elapsed());
-        "(elapsed: {} ms)",
-        now.elapsed().as_micros() as f32 / 1000_f32
-    );
     now = Instant::now();
     println!("");
     println!("Part 2: {}", solve_part2(INPUT).unwrap());
-    println!(
+    println!("(elapsed: {:?})", now.elapsed());
-        "(elapsed: {} ms)",
-        now.elapsed().as_micros() as f32 / 1000_f32
-    );
 }
 
 #[cfg(test)]

day09/src/main.rs

@@ -67,17 +67,11 @@ fn main() {
     let mut now = Instant::now();
     let part1 = solve_part1(INPUT, 25).unwrap();
     println!("Part 1: {}", part1);
-    println!(
+    println!("(elapsed: {:?})", now.elapsed());
-        "(elapsed: {} ms)",
-        now.elapsed().as_micros() as f32 / 1000_f32
-    );
     now = Instant::now();
     println!("");
     println!("Part 2: {}", solve_part2(INPUT, part1).unwrap());
-    println!(
+    println!("(elapsed: {:?})", now.elapsed());
-        "(elapsed: {} ms)",
-        now.elapsed().as_micros() as f32 / 1000_f32
-    );
 }
 
 #[cfg(test)]