computer-programming---1/musicplayer.cpp at main · Aashray29/computer-programming---1 · GitHub

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#include<iostream>
#include<vector>
using namespace std;
int main() {
    int Q;
    cin>>Q;
    vector<int> A(Q);
    for(int i=0;i<Q;i++){
        cin>>A[i];
    }
    cout<<endl;
    int music_played=0;
    int volume=0;
    for(int i=0;i<Q;i++){
        if(A[i]==1){
            volume++;
        }
        else if(A[i]==2 && volume>=1){
            volume--;
        }
        else if(A[i]==3){
            if(music_played==0){
                music_played=1;
            }
            else{
                music_played=0;
            }
        }
            if(music_played==1 && volume>=3){
                cout<<"Yes"<<endl;
            }
            else{
                cout<<"No"<<endl;
            }

    }
    return 0;
}