Remove debug helpers from day 15

Author: fwcd

day15/src/day15.cpp

@@ -15,27 +15,8 @@ struct Vec2 {
   Vec2<T> operator+(const Vec2<T> &rhs) const {
     return {x + rhs.x, y + rhs.y};
   }
-
-  Vec2<T> operator-(const Vec2<T> &rhs) const {
-    return {x - rhs.x, y - rhs.y};
-  }
-
-  void operator+=(const Vec2<T> &rhs) {
-    x += rhs.x;
-    y += rhs.y;
-  }
-
-  void operator-=(const Vec2<T> &rhs) {
-    x -= rhs.x;
-    y -= rhs.y;
-  }
 };
 
-template <typename T>
-std::ostream &operator<<(std::ostream &os, Vec2<T> vec) {
-  return os << vec.x << ", " << vec.y;
-}
-
 template <typename T>
 struct std::hash<Vec2<T>> {
   std::size_t operator()(const Vec2<T> &vec) const {
@@ -59,10 +40,6 @@ Vec2<int> inst_dir(Inst inst) {
   }
 }
 
-std::ostream &operator<<(std::ostream &os, Inst inst) {
-  return os << char(inst);
-}
-
 struct Board {
   std::vector<std::string> rows;
   Vec2<int> robot = {-1, -1};
@@ -165,20 +142,6 @@ struct Board {
   }
 };
 
-std::ostream &operator<<(std::ostream &os, const Board &board) {
-  for (int y = 0; y < board.height(); y++) {
-    for (int x = 0; x < board.width(); x++) {
-      if (board.robot == Vec2<int>({x, y})) {
-        os << '@';
-      } else {
-        os << board[{x, y}];
-      }
-    }
-    os << std::endl;
-  }
-  return os;
-}
-
 struct State {
   Board board1;
   Board board2;