basic 3x3 scrambler

[johnjohn]

So i want to make an app that gives me a scramble for a 3x3 rubiks cube. The thing is i cant have it show me the same or similar moves one after the other(such as ...U U'...).
any ideas? here is what i have made

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;

int x;
int y;// equal to x

int main(){
    srand(time(0));
    for(int i = 0; i < 19;i++){
        
        x = rand()%19;
        switch(x){
            case 1:
                cout << "R";
                break;
            case 2:
                cout << "R'";
                break;
            case 3:
                cout << "R2";
                break;
            case 4:
                cout << "U";
                break;
            case 5:
                cout << "U'";
                break;
            case 6:
                cout << "U2";
                break;
            case 7:
                cout << "F";
                break;
            case 8:
                cout << "F'";
                break;
            case 9:
                cout << "F2";
                break;
            case 10:
                cout << "D";
                break;
            case 11:
                cout << "D'";
                break;
            case 12:
                cout << "D2";
                break;
            case 13:
                cout << "B";
                break;
            case 14:
                cout << "B'";
                break;
            case 15:
                cout << "B2";
                break;
            case 16:
                cout << "L";
                break;
            case 17:
                cout << "L'";
                break;
            case 18:
                cout << "L2";
                break;
            
            
        }
        
        cout << " ";
        y=x;
        
        
    }
}

[dutch]

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;

int main(){
    srand(time(0));

    for (int i = 0, prev = 99; i < 10; ) {
        int r = rand() % 18;
        int side = r / 3;
        int amount = r % 3 + 1;

        if (prev / 3 != side) {
            cout << "RUFDBL"[side] << amount << ' ';
            ++i;
            prev = r;
        }
    }
    cout << '\n';
}

[salem c]

Or for lol's :)

cout << side["RUFDBL"] << amount << ' ';

[johnjohn]

thanks ill try it