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 (Clang 3.8.0) (judge verdict: Accepted)

#include<stdio.h>
#include<string.h>
#include<ctype.h>
#include<math.h>
#include<stdlib.h>

//降順バブルソート
void bubblesort(int a[],int N){
    for(int i=0; i<N-1; i++){
        for(int j=0; j<N-1; j++){
            if(a[j+1]>a[j]){
                int swap = a[j];
                a[j] = a[j+1];
                a[j+1] = swap;
            }
        }
    }
}


int main(void){

    int N;
    scanf("%d",&N);
    int a[N];
    for(int i=0; i<N; i++){
        scanf("%d",&a[i]);
    }

    bubblesort(a, N);

    int sum = a[0]/2;
    for (int i=1; i<N; i++) {
        sum += a[i];
    }

    printf("%d\n",sum);

    return 0;
}