Answer:
# include <conio.h>
#include <iostream.h>
using namespace std;
main()
{
int billamount[12];
char monthname["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
for (int month = 1 ; month<=12; month++)
{
cout<<"Enter the amount of bill for the month"<<month;
cin>>billamount[month];
}
for (i=0; i<= 12; i++)
{
if (billamount[0]<billamount[i])
billamount[0]=billamount[i];
monthname[0]=monthname[i];
}
cout<<"Maximum months phone bill"<<monthname[0]<<"="<<billamount[0]
getch();
}