Untitled

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<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
var Board = {
  init: function (n) {
      this.bound = n;
      this.ships = {};
      this.sunk = 0;
      this.hitted = 0;
    },

    getPos: function (x, y) {
      x = parseInt(x, 10) - 1;
      y = y.charCodeAt(0) - 97;
      if (x >= this.bound || y >= this.bound)
        throw new Error('Ship part position wrong (out of bound)');
      return [ x, y ];
    },

    placeShip: function (...parts) {
      let ship = '';
      let pos = [];
      parts.forEach((part) => {
        part = part.match(/^(\d+)([a-z])$/i);
        if (part.length !== 3 || part[2].charCodeAt(0) < 97 || part[2].charCodeAt(0) > 122)
          throw new Error('Ship part position wrong');
        let [ x, y ] = this.getPos(part[1], part[2]);
        ship += `${x}${y}`;
        if(pos.indexOf(`${x}${y}`) === -1)
          pos.push(`${x}${y}`);
      });
      this.ships[ship] = pos;
    },

    placeShips: function (ships) {
      ships.forEach((ship) => {
        this.placeShip(...(ship.split(' ')));
      });
    },

    destroyAt: function (x, y) {
        for(ship in this.ships) {
          const indx = this.ships[ship].indexOf(`${x}${y}`);
          if(indx >= 0) {
            this.ships[ship].splice(indx, 1);
            if (this.ships[ship].length === 0) {
              ++this.sunk;
            } else if(!this.ships[ship].hitted) {
              ++this.hitted;
              this.ships[ship].hitted = true;
            }
          }
        }
    },

    attack: function (positions) {
      positions.forEach((position) => {
        position = position.match(/^(\d+)([a-z])$/i);
        if (position.length !== 3 || position[2].charCodeAt(0) < 97 || position[2].charCodeAt(0) > 122)
          throw new Error('Attack part position wrong');
        let [ x, y ] = this.getPos(position[1], position[2]);
        this.destroyAt(x, y);
      });
    }
};

function solution (N, S, T) {
  Board.init(N);
  Board.placeShips(S.toLowerCase().split(','));
  Board.attack(T.toLowerCase().split(' '));
  return `${Board.sunk},${Board.hitted}`;
}

console.log(solution(4, '1B 1c,2d 4d', '2b 2d 3d 4d 4a'));

console.log(solution(3, '1A 1B,2c 2c', '1b'));

console.log(solution(12, '1A 2A,12A 12A', '12A'));
</script>


<script id="jsbin-source-javascript" type="text/javascript">var Board = {
  init: function (n) {
      this.bound = n;
      this.ships = {};
      this.sunk = 0;
      this.hitted = 0;
    },

    getPos: function (x, y) {
      x = parseInt(x, 10) - 1;
      y = y.charCodeAt(0) - 97;
      if (x >= this.bound || y >= this.bound)
        throw new Error('Ship part position wrong (out of bound)');
      return [ x, y ];
    },

    placeShip: function (...parts) {
      let ship = '';
      let pos = [];
      parts.forEach((part) => {
        part = part.match(/^(\d+)([a-z])$/i);
        if (part.length !== 3 || part[2].charCodeAt(0) < 97 || part[2].charCodeAt(0) > 122)
          throw new Error('Ship part position wrong');
        let [ x, y ] = this.getPos(part[1], part[2]);
        ship += `${x}${y}`;
        if(pos.indexOf(`${x}${y}`) === -1)
          pos.push(`${x}${y}`);
      });
      this.ships[ship] = pos;
    },

    placeShips: function (ships) {
      ships.forEach((ship) => {
        this.placeShip(...(ship.split(' ')));
      });
    },

    destroyAt: function (x, y) {
        for(ship in this.ships) {
          const indx = this.ships[ship].indexOf(`${x}${y}`);
          if(indx >= 0) {
            this.ships[ship].splice(indx, 1);
            if (this.ships[ship].length === 0) {
              ++this.sunk;
            } else if(!this.ships[ship].hitted) {
              ++this.hitted;
              this.ships[ship].hitted = true;
            }
          }
        }
    },

    attack: function (positions) {
      positions.forEach((position) => {
        position = position.match(/^(\d+)([a-z])$/i);
        if (position.length !== 3 || position[2].charCodeAt(0) < 97 || position[2].charCodeAt(0) > 122)
          throw new Error('Attack part position wrong');
        let [ x, y ] = this.getPos(position[1], position[2]);
        this.destroyAt(x, y);
      });
    }
};

function solution (N, S, T) {
  Board.init(N);
  Board.placeShips(S.toLowerCase().split(','));
  Board.attack(T.toLowerCase().split(' '));
  return `${Board.sunk},${Board.hitted}`;
}

console.log(solution(4, '1B 1c,2d 4d', '2b 2d 3d 4d 4a'));

console.log(solution(3, '1A 1B,2c 2c', '1b'));

console.log(solution(12, '1A 2A,12A 12A', '12A'));
</script></body>
</html>