Computer as a player

QatarAirways (9)
Hello there,
I wanna add the Computer as a Player, if there are only 3 player who play the game.
My first try was this:

int numberofplayers;
cout << "How much players? : ";
cin >> numberofplayers;

string computer = "Computer";
string* players = new string[numberofplayers];
if (numberofplayers== 3)
{
for (int i = 0; i < numberofplayers; i++)
{
cout << "players " << i + 1 << ", tell me your name: ";
cin >> players [i];
}
players [4] = computer;
cout << "Player 4 is the computer! " << endl;
}
my goal is now to see all players :
for (int i = 1; i <= numberofplayers; i++)
{
cout << players[i] << "\t";
}
My problem is now that i can not see the 4th player which ist the Computer.

Can someone can tell me how i can see the Computer as a player?

Greets
jonnin (11437)
I think you are off by one.
an array is indexed from zero, which you seem to know: your for loop is correct. But you mess with players[4] which is the FIFTH PLAYER. Player 4 is [3] because 0,1,2,3 is 4 things... right?
Ganado (6811)
Exactly what jonnin said, but here's an example just to solidify it:
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#include <iostream>
#include <string>
using namespace std;

int main()
{
    int numberofplayers;
    cout << "How many players? : ";
    cin >> numberofplayers;
    
    const string computer = "Computer";
    
    string* players = nullptr;
    
    if (numberofplayers == 3)
    {
        // special case: will actually be 4 players
        // with the 4th player being the computer
        players = new string[4];
        players[3] = computer;
    }
    else
    {
        players = new string[numberofplayers];
    }
    
    for (int i = 0; i < numberofplayers; i++)
    {
        cout << "Player " << i + 1 << ", tell me your name: ";
        cin >> players[i];
    }
    
    if (numberofplayers == 3)
    {
        numberofplayers = 4;
        cout << "Player 4 is the computer!\n";
    }

    for (int i = 0; i < numberofplayers; i++)
    {
        cout << players[i] << "\t";
    }
    cout << '\n';
    
    delete[] players;
}


If you used std::vectors, the code can be a bit cleaner:
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#include <iostream>
#include <string>
#include <vector>
using namespace std;

int main()
{
    int numberofplayers;
    cout << "How many players? : ";
    cin >> numberofplayers;

    vector<string> players(numberofplayers);
    
    for (size_t i = 0; i < players.size(); i++)
    {
        cout << "Player " << i + 1 << ", tell me your name: ";
        cin >> players[i];
    }
    
    if (numberofplayers == 3)
    {  
        const string computer = "Computer";
        cout << "Player 4 is the computer!\n";
        players.push_back(computer);
    }

    for (size_t i = 0; i < players.size(); i++)
    {
        cout << players[i] << "\t";
    }
    cout << '\n';
}

How many players? : 3                         
Player 1, tell me your name: Alice                     
Player 2, tell me your name: Bob                        
Player 3, tell me your name: Charlie                       
Player 4 is the computer!                                        
Alice   Bob     Charlie Computer

Neither code checks for invalid user input, FYI.
Last edited on
QatarAirways (9)
Oh lord!
Thank you so much!
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