Is there an easier way to instantiate many objects?

[kingkush]

My teacher once told me if I am using a lot of repetitive code chances are I'm doing something wrong or inefficiently. What I'm trying to do is create a deck of card but instantiating each card (52) seems very redundant. Am i doing this correctly or is there a better method to do this? Keep in mind I am still very much a beginner. This is what I've done so far:

  #include <iostream>
#include <vector>

using namespace std;

class CardDeck
{
public:
    string suite;
    int suiteStrength;
    int num;
};

int main()
{
    //Holds all Diamond cards
    vector<CardDeck> diamondSuite;
    
    //Create all
    CardDeck threeDiamond;
    diamondSuite.push_back(threeDiamond);
    CardDeck fourDiamond;
    diamondSuite.push_back(fourDiamond);
    CardDeck fiveDiamond;
    diamondSuite.push_back(fiveDiamond);
    CardDeck sixDiamond;
    diamondSuite.push_back(sixDiamond);
    CardDeck sevenDiamond;
    diamondSuite.push_back(sevenDiamond);
    CardDeck eightDiamond;
    diamondSuite.push_back(eightDiamond);
    CardDeck nineDiamond;
    diamondSuite.push_back(nineDiamond);
    CardDeck tenDiamond;
    diamondSuite.push_back(tenDiamond);
    CardDeck jackDiamond;
    diamondSuite.push_back(jackDiamond);
    CardDeck queenDiamond;
    diamondSuite.push_back(queenDiamond);
    CardDeck kingDiamond;
    diamondSuite.push_back(kingDiamond);
    CardDeck aceDiamond;
    diamondSuite.push_back(aceDiamond);
    CardDeck twoDiamond;
    diamondSuite.push_back(twoDiamond);
    
    for(int i = 3; i < 13; i ++)
    {
        diamondSuite[i].suite = "DIAMOND";
        diamondSuite[i].suiteStrength = 0;
        diamondSuite[i].num = i;
    }
    
    cout << "SUITE:" << diamondSuite[3].suite << endl;
    cout << "SUITE STR: " << diamondSuite[7].suiteStrength << endl;
    cout << "NUM: " << diamondSuite [12].num << endl;
}