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Optimized integer parsing in day 7 part 2

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This commit is contained in:
Ishan Jain 2022-12-07 17:52:55 +05:30
parent 6d92264741
commit 4073f69c84
Signed by: ishan
GPG Key ID: 0506DB2A1CC75C27
2 changed files with 5 additions and 3 deletions
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2
.gitignore vendored
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@ -1,5 +1,5 @@
/target /target
go.mod go.mod
go.sum go.sum
test.go *.go
test test

6
src/main.rs
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@ -48,8 +48,10 @@ fn solution(input: impl Iterator<Item = &'static str>) -> u32 {
}, },
_ => { _ => {
let (size, _) = line.split_once(' ').unwrap(); let size = line
let size = size.parse::<u32>().unwrap(); .bytes()
.take_while(|&c| c != b' ')
.fold(0u32, |a, x| a * 10 + (x - b'0') as u32);
current_folder_size += size; current_folder_size += size;
} }
} }