代码做一半

#include <iostream>
#include <string.h>
#include <list>
using namespace std;

typedef struct LNode {
    string stuname;
    int room;
}Room;

void assign(string name, list<Room> &room,list<int>& no) {
    
}

int main()
{
    int n;
    cin >> n;
   list<int>no_list = {101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120};
    list<Room>room;
    Room* p = new Room[n];
    for (int i = 0; i < n; i++) {
        int r;
        no_list.remove(r);
        string name;
        cin >> name >> r;
        p[i].room = r;
        p[i].stuname = name;
        room.push_back(p[i]);
    }
    int m;
    cin >> m;
    for (int k = 0; k < m; k++) {
        string s1, s2;
        cin >> s1 >> s2;
        if (s1[0] == 'a') {
            assign(s2,room,no_list);
        }else if()
    }

}