Loop In game of Rock, Paper, Scissors in C++ -

i'm doing game of rock paper scissors i'm not sure have loop correct let alone rest of code. continue expected ')' @ end of input , expected '(' @ end of input , ';' @ end of input , expected '}' @ end of input. teachers aren't if few pointers on how that'd great, thank you. heres have.

#include <iostream> #include <string>  using namespace std;  int main() {   char choice = 'n';   {   {     char playerone;     char playertwo;      cout << "player 1: enter r rock, p paper, or s scissors:" << e$      cin >> playerone;      cout << "player 2: enter r rock, p paper, or s scissors:" << e$     cin >> playertwo;      switch (playerone)     {       case 'r':       case 'r':       switch (playertwo)       {         case 'r':         case 'r':         cout << "tie" << endl;         break;         case 'p':         case 'p':         cout << "player 2 wins" << endl;         break;         case 's':         case 's':         cout << "player 1 wins" << endl;         break;       }       break;       case 'p':       case 'p':       switch (playertwo) {        case 'p':        case 'p':        cout << "tie" << endl;        break;        case 'r':        case 'r':        cout << "player 1 wins" << endl;        case 's':        case 's':        cout << "player 2 wins" << endl;        break;      }      break;      case 's':      case 's':      switch (playertwo) {       case 's':       case 's':       cout << "tie" << endl;       break;       case 'p':       case'p':       cout << "player 1 wins" << endl;       case 'r':       case 'r':       cout << "player 2 wins" << endl;        break;     }     cout << "do want play again, press y yes or press n no";     cin >> choice;   } while ((choice == 'y' || choice == 'y'));  } return 0; }