1 files changed, 12 insertions, 0 deletions
diff --git a/src/2021/day9/aoc.cpp b/src/2021/day9/aoc.cpp
index 7a3c895..d8f6735 100644
--- a/src/2021/day9/aoc.cpp
+++ b/src/2021/day9/aoc.cpp
@@ -2,4 +2,16 @@
 
 namespace aoc2021 {
 
+std::pair<int, int> day9(line_view file) {
+  heightmap hm;
+  int r{0};
+  per_line(file, [&r, &hm](line_view lv){
+    hm.load(r, lv);
+    r++;
+    return true;
+  });
+
+  return {hm.risks(), 0};
+}
+
 }