Dota2 Senate

class Solution {
public:
    string predictPartyVictory(string senate) {
        queue<int>dq, rq;
        int n = senate.size();
        for(int i =0 ;i < n;i++)
        {
            if(senate[i] == 'R'){
                rq.push(i);
            }
            else{
                dq.push(i);
            }
        }
        while(!dq.empty() && !rq.empty())
        {
            int ri = rq.front();
            rq.pop();
            int di = dq.front();
            dq.pop();
            if(ri < di)
            {
                rq.push(ri+n);
            }
            else{
                dq.push(di+n);
            }
        }
        if(dq.empty())
        return "Radiant";
        else
        return "Dire";
    }
};