aoc 2025, day 9, part 2

1 files changed, 6 insertions, 23 deletions

diff --git a/2025/src/day09.cpp b/2025/src/day09.cpp
index 796bf07..7eaf842 100644
--- a/2025/src/day09.cpp
+++ b/2025/src/day09.cpp
@@ -64,31 +64,14 @@ intersects(const Segment& line, const tuple<long, long, long, long>& rect)
         const auto [x1, y1]     = start;
         const auto [x2, y2]     = end;
 
-        const auto [left, top, right, bottom] = rect;
-
-        if ( x1 == x2 ) {
-                if ( x1 <= left || x1 >= right ) {
-                        return false;
-                }
-
-                const auto min_y = min(y1, y2);
-                const auto max_y = max(y1, y2);
-
-                return max_y > top && min_y < bottom;
-        }
+        const auto min_x = min(x1, x2);
+        const auto max_x = max(x1, x2);
+        const auto min_y = min(y1, y2);
+        const auto max_y = max(y1, y2);
 
-        if ( y1 == y2 ) {
-                if ( y1 <= top || y1 >= bottom ) {
-                        return false;
-                }
-
-                auto min_x = min(x1, x2);
-                auto max_x = max(x1, x2);
-
-                return max_x > left && min_x < right;
-        }
+        const auto [left, top, right, bottom] = rect;
 
-        return false;
+        return max_x > left && min_x < right && max_y > top && min_y < bottom;
 }
 
 bool