W3Schools Tryit Editor

#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
    numberOfTurns++;
  }

cout << "Victory!\n";
  cout << "You won in " << numberOfTurns << " turns";
  
  return 0;
}

Selecting coordinates
Choose a row number between 0 and 3: 2
Choose a column number between 0 and 3: 1
Miss

Selecting coordinates
Choose a row number between 0 and 3: 2
Choose a column number between 0 and 3: 2
Hit! 3 left.

Selecting coordinates
Choose a row number between 0 and 3: 2
Choose a column number between 0 and 3: 2
Miss

Selecting coordinates
Choose a row number between 0 and 3: 3
Choose a column number between 0 and 3: 2
Hit! 2 left.

Selecting coordinates
Choose a row number between 0 and 3: 0
Choose a column number between 0 and 3: 2
Hit! 1 left.

Selecting coordinates
Choose a row number between 0 and 3: 0
Choose a column number between 0 and 3: 0
Miss

Selecting coordinates
Choose a row number between 0 and 3: 0
Choose a column number between 0 and 3: 1
Hit! 0 left.

Victory!
You won in 7 turns
Process returned 0 (0x0) execution time : 24.994 s