Cpp program to input 5 cities, display the name and length of city with maximum length using array of strings

Write a program to input 5 cities, display the name and  length of city with maximum length using array of strings 

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string city[10],str=" "; // array of strings
    char ch;
    int size, max = 0;
    cout << "Enter the cities" << endl;
    for (int a = 0; a < 5; a++)
    {
        getline(cin, city[a]);
    }
    for (int a = 0; a < 5; a++)
    {
        size =city[a].length();
        if(max<=size)
        {
            max=size;
            str=city[a];
        }
    }
    cout<<"The largest string is : "<<str<<" with length "<<max;
    return 0;
}

Enter the cities

kanpur

ahmedabad

new delhi

agra

banglore

The largest string is : new delhi with length 9