1 files changed, 18 insertions, 0 deletions
diff --git a/src/2015/day21/aoc.cpp b/src/2015/day21/aoc.cpp
index 1c33c66..8c7e259 100644
--- a/src/2015/day21/aoc.cpp
+++ b/src/2015/day21/aoc.cpp
@@ -2,4 +2,22 @@
 
 namespace aoc2015 {
 
+int day21() {
+  Role me{100, 0, 0, 0};
+  Role boss{100, 8, 2, 0};
+  RPG game;
+
+  int money{INT32_MAX};
+  std::vector<Role> rs = game.shop(me);
+  std::for_each(rs.begin(), rs.end(), [&game, &boss, &money](Role& r) {
+    Role b = boss;
+    if (game.battle(r, b)) {
+      if (r.cost < money) {
+        money = r.cost;
+      }
+    }
+  });
+  return money;
 }
+
+} // namespace aoc2015