bubble sorting in array

#include<iostream>
using namespace std;
int main()
{
    int i,j,temp,flag,n;
    cout<<"enter no. of elements : ";
    cin>>n;
    int age[n];
    for(i=0;i<n;i++)
    {
    cout<<"enter age of "<<i+1<<" : ";
    cin>>age[i];
    }
    for(i=0;i<n-1;i++)
    {
        flag=1;
        for(j=0;j<n-1-i;j++)
        {
            if(age[j]>age[j+1])
            {
                flag=0;
                temp=age[j];
                age[j]=age[j+1];
                age[j+1]=temp;
            }
        }
        if(flag)
        {
            break;
        }
    }
   cout<<"sorted list.."<<endl;
   for(i=0;i<n;i++)
   {
       cout<<age[i]<<" ";
   }
   
}