Problem:
Score : 200 points

Problem Statement

In some other world, today is the day before Christmas Eve.

Mr. Takaha is buying N items at a department store. The regular price of the i-th item (1 \leq i \leq N) is p_i yen (the currency of Japan).

He has a discount coupon, and can buy one item with the highest price for half the regular price. The remaining N-1 items cost their regular prices. What is the total amount he will pay?

Constraints

2 \leq N \leq 10

100 \leq p_i \leq 10000

p_i is an even number.

Input

Input is given from Standard Input in the following format:

N
p_1
p_2
:
p_N

Output

Print the total amount Mr. Takaha will pay.

Sample Input 1

3
4980
7980
6980

Sample Output 1

15950

The 7980-yen item gets the discount and the total is 4980 + 7980 / 2 + 6980 = 15950 yen.

Note that outputs such as 15950.0 will be judged as Wrong Answer.

Sample Input 2

4
4320
4320
4320
4320

Sample Output 2

15120

Only one of the four items gets the discount and the total is 4320 / 2 + 4320 + 4320 + 4320 = 15120 yen.

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include<stdio.h>
int main()
{
    long long int i,j,a,max,s;
    double sum;
    scanf("%lld",&a);
    j=0;
    long long int b[a+10];
    for(i=0;i<a;i++)
    {
        scanf("%lld",&b[i]);
    }
    max=b[0];
    for(i=0;i<a;i++)
    {
        if(max<b[i])
        {
            max=b[i];
            j=i;
        }
    }
    b[j]=0;
    sum=max/2.0;
    for(i=0;i<a;i++)
    {
        sum=sum+b[i];
    }
   s=(long long int)sum;
   if(s==sum)
   {
       printf("%lld\n",s);
   }
   else
    printf("%.1lf\n",sum);
   return 0;

}