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Result

Software engineer returns a program.

void Server(Channel[C] server, Channel[C] client) {   Array<bool> wait = new(C, false);   int counter = R;   while (true) {     int i = select(server);     if (receive(server[i]) == REQUEST) {       if (counter > 0) {         send(client[i], GRANT);         counter-;       }       else         wait[i] = true;       }     }

...     else {       int j = exists(wait);       if (j != -1) {         send(client[j], GRANT);         wait[j] = false;       }       else         counter++;     }   } }