#include <iostream>

using namespace std;

​

int main() {

  // We put "1" to indicate there is a ship.

  bool ships[4][4] = {

    { 0, 1, 1, 0 },

    { 0, 0, 0, 0 },

    { 0, 0, 1, 0 },

    { 0, 0, 1, 0 }

  };

​

  // Keep track of how many hits the player has and how many turns they have played in these variables

  int hits = 0;

  int numberOfTurns = 0;

​

  // Allow the player to keep going until they have hit all four ships

  while (hits < 4) {

    int row, column;

​

    cout << "Selecting coordinates\n";

​

    // Ask the player for a row

    cout << "Choose a row number between 0 and 3: ";

    cin >> row;

​

    // Ask the player for a column

    cout << "Choose a column number between 0 and 3: ";

    cin >> column;

​

    // Check if a ship exists in those coordinates

    if (ships[row][column]) {

      // If the player hit a ship, remove it by setting the value to zero.

      ships[row][column] = 0;

​

      // Increase the hit counter

      hits++;

​

      // Tell the player that they have hit a ship and how many ships are left

      cout << "Hit! " << (4-hits) << " left.\n\n";

    } else {

      // Tell the player that they missed

      cout << "Miss\n\n";

    }

​

    // Count how many turns the player has taken