1 files changed, 2 insertions, 11 deletions
diff --git a/src/2022/day16/aoc.cpp b/src/2022/day16/aoc.cpp
index 658357c..460b29a 100644
--- a/src/2022/day16/aoc.cpp
+++ b/src/2022/day16/aoc.cpp
@@ -77,7 +77,7 @@ void flow(int m, valve* v, std::set<valve*> opened, int total, int* max) {
 
       // choose next
       for (auto& n : diagram[v]) {
-        if (m >= n.m) {
+        if (m >= n.m && opened.find(n.v) == opened.end()) {
           flow(m - n.m, n.v, opened, total, max);
         }
       }
@@ -110,18 +110,9 @@ std::pair<int, int> day16(line_view file) {
     diagram.insert({v, vs});
   }
 
-  // for (auto& kv : diagram) {
-  //   valve* v = kv.first;
-  //   std::cout << v->name << ": ";
-  //   for (auto& n : kv.second) {
-  //     std::cout << n.v->name << "(" << n.m << ") ";
-  //   }
-  //   std::cout << std::endl;
-  // }
-
   int max{INT32_MIN};
   std::set<valve*> opened;
-  flow(30, get("AA"), opened, 0, &max);
+  flow(29, get("BB"), opened, 0, &max);
 
   printf("%d\n", max);