day06 fix float logic

1 files changed, 2 insertions, 2 deletions

diff --git a/2023/day06.rs b/2023/day06.rs
index 839c798..93ffec5 100644
--- a/2023/day06.rs
+++ b/2023/day06.rs
@@ -6,9 +6,9 @@ fn get_opts(t: u64, d: u64) -> u64 {
     let t = t as f64;
     let d = d as f64;
     let D = f64::sqrt((t * t - 4. * d) as f64);
-    let x1 = ((-t - D) / 2.).floor();
+    let x1 = ((-t - D) / 2.).ceil();
     let x2 = ((-t + D) / 2.).floor();
-    (x2 - x1) as u64
+    (x2 - x1 + 1.) as u64
 }
 
 fn main() {