C++ help making multiplayer die rolling game

I'm creating a multiplayer game in which all players have one roll of the dice, and I want the rolls to be stored in a vector and the player with the smallest roll to win. I would like the game to reset after each time, allowing multiple plays without saving previous die rolls.

I have the vector coded for inserting player names, but I am not sure how to save a roll to each player, choose which goes first, and output scores.

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <vector>



using namespace std;
int diceRoll();
char playerName[10];
vector <string> playerNames();




int main()
{
string inputBuffer;
int numPlayers;
diceGame gameManager;


/// get the number of players
do
{
    cout << "How many players:";
    getline(cin, inputBuffer);
    numPlayers = atoi( inputBuffer.c_str() );
}
while (numPlayers < 1 || numPlayers > 9);

/// play the game over and over
do
{
    gameManager.initializeGame(numPlayers);
    gameManager.playGame();

    cout << endl << "Play Again? [y/n]";
    getline(cin, inputBuffer);
}
while ( tolower(inputBuffer[0]) != 'n' );

return 0;
}'''




void diceGame::initializeGame(int numPlayers)
{
/// clear the vector or robots (if necessary) and put in one robot per 
player
/// ask for the names of each player, and assign that name to each robot


cout << "Enter the name of each player" << endl << endl;
vector<string> playerNames(numPlayers);
for (int i = 0; i < numPlayers; i++)
    cin >> playerNames[i];

playGame();

// I think I can use this rand function to decide which player goes first, otherwise I'm not sure how to play in numerical order (ex: Player 1: Steve goes first)

cout << playerNames[rand() % (1 + numPlayers)]; 

 }


void diceGame::playGame()
{
/// do
///   determine which player goes

/// I am unable to get this to work, since my vector is not global, and I'm not sure how to do that exactly

 cout << playerNames[rand() % (1 + numPlayers)] << "'s Turn" << endl;
///   roll the dice

diceRoll();
}


int diceRoll () {

int Roll;
int min = 1;
int max = 8;

Roll = rand() % (1 + max - min) + min ;
return Roll;
}

I am able to roll the dice but not save it to a vector and eventually output a winner (lowest roll). Any help would be appreciated!