2017 day19

1 files changed, 5 insertions, 3 deletions

diff --git a/src/2017/day19/aoc.cpp b/src/2017/day19/aoc.cpp
index 9336fdb..a9511f4 100644
--- a/src/2017/day19/aoc.cpp
+++ b/src/2017/day19/aoc.cpp
@@ -46,7 +46,7 @@ static heading next(heading h, alpha_grid& g) {
   return next(h);
 }
 
-static void move(heading h, alpha_grid& g, std::string& alpha) {
+static void move(heading h, alpha_grid& g, std::string& alpha, int* count) {
   while (true) {
     char c = g.get(h.p);
     if (c == ' ')
@@ -55,6 +55,7 @@ static void move(heading h, alpha_grid& g, std::string& alpha) {
       alpha.push_back(c);
     }
     h = next(h, g);
+    *count += 1;
   }
 }
 
@@ -69,7 +70,8 @@ std::pair<std::string, int64_t> day19(line_view file) {
 
   heading start = {g.start, direction::down};
   std::string alpha{""};
-  move(start, g, alpha);
-  return {alpha, 0};
+  int count{0};
+  move(start, g, alpha, &count);
+  return {alpha, count};
 }
 } // namespace aoc2017