queue assingment

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int t,n,m;
    cout<<"Enter how many test case you want"<<endl;
    cin>>t;
    for(int i=1;i<=t;i++)
    {
        cout<<"Test case : "<<i<<endl;
        cout<<"How many data you want to enter in queue"<<endl;
        cin>>n;
        int a[n];
        for(int j=0;j<n;j++)
        {
            cin>>a[j];
        }
        cout<<"M = ";
        cin>>m;
        cout<<endl;
        if(m<n)
        {
            for(int j=0;j<m;j++)
            {
                cout<<a[j]<<" ";
            }
            cout<<endl<<"In Queue : ";
            for(int j=m;j<n;j++)
            {
                cout<<a[j]<<" ";
            }
            cout<<endl;
        }
        if(m>=n)
        {
            for(int j=0;j<n;j++)
            {
                cout<<a[j]<<" ";
            }
             cout<<endl<<"In Queue : Empty"<<endl;
        }
    }
    return 0;
}