Try a silly

alion02 · Dec 6, 2024 · 3f77c23 · 3f77c23
1 parent 10f3582
commit 3f77c23
Showing 1 changed file with 37 additions and 41 deletions.
diff --git a/src/day6.rs b/src/day6.rs
@@ -1,7 +1,6 @@
 use super::*;
 
 #[target_feature(enable = "avx2,bmi1,bmi2,cmpxchg16b,lzcnt,movbe,popcnt")]
-#[allow(unreachable_code)]
 unsafe fn inner1(s: &[u8]) -> u32 {
     let mut loc = s.iter().position(|b| *b == b'^').unwrap_unchecked();
     let mut new = [true; 131 * 130];
@@ -16,46 +15,43 @@ unsafe fn inner1(s: &[u8]) -> u32 {
             }
             if *s.get_unchecked(next) == b'#' {
                 loc = loc.wrapping_add(1);
-                break;
-            }
-            loc = next;
-        }
-        loop {
-            total += *new.get_unchecked(loc) as u32;
-            *new.get_unchecked_mut(loc) = false;
-            let next = loc.wrapping_add(1);
-            if *s.get_unchecked(next) == b'\n' {
-                break 'outer;
-            }
-            if *s.get_unchecked(next) == b'#' {
-                loc = loc.wrapping_add(131);
-                break;
-            }
-            loc = next;
-        }
-        loop {
-            total += *new.get_unchecked(loc) as u32;
-            *new.get_unchecked_mut(loc) = false;
-            let next = loc.wrapping_add(131);
-            if next >= s.len() {
-                break 'outer;
-            }
-            if *s.get_unchecked(next) == b'#' {
-                loc = loc.wrapping_sub(1);
-                break;
-            }
-            loc = next;
-        }
-        loop {
-            total += *new.get_unchecked(loc) as u32;
-            *new.get_unchecked_mut(loc) = false;
-            let next = loc.wrapping_sub(1);
-            if *s.get_unchecked(next) == b'\n' {
-                break 'outer;
-            }
-            if *s.get_unchecked(next) == b'#' {
-                loc = loc.wrapping_sub(131);
-                break;
+                loop {
+                    total += *new.get_unchecked(loc) as u32;
+                    *new.get_unchecked_mut(loc) = false;
+                    let next = loc.wrapping_add(1);
+                    if *s.get_unchecked(next) == b'\n' {
+                        break 'outer;
+                    }
+                    if *s.get_unchecked(next) == b'#' {
+                        loc = loc.wrapping_add(131);
+                        loop {
+                            total += *new.get_unchecked(loc) as u32;
+                            *new.get_unchecked_mut(loc) = false;
+                            let next = loc.wrapping_add(131);
+                            if next >= s.len() {
+                                break 'outer;
+                            }
+                            if *s.get_unchecked(next) == b'#' {
+                                loc = loc.wrapping_sub(1);
+                                loop {
+                                    total += *new.get_unchecked(loc) as u32;
+                                    *new.get_unchecked_mut(loc) = false;
+                                    let next = loc.wrapping_sub(1);
+                                    if *s.get_unchecked(next) == b'\n' {
+                                        break 'outer;
+                                    }
+                                    if *s.get_unchecked(next) == b'#' {
+                                        loc = loc.wrapping_sub(131);
+                                        continue 'outer;
+                                    }
+                                    loc = next;
+                                }
+                            }
+                            loc = next;
+                        }
+                    }
+                    loc = next;
+                }
             }
             loc = next;
         }