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 getBigNum(int *a, int len) {
  int big = a[0];
  int pos = 0;
  for (int i = 1; i < len; i++) {
    if (big < a[i]) {
      big = a[i];
      pos = i;
    }
  }
  a[pos] = 0;
  return big;
}

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

sum = sum - (getBigNum(a,n)/2);
printf("%d",sum);
}