Score : 200 points
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?
Input is given from Standard Input in the following format:
N p_1 p_2 : p_N
Print the total amount Mr. Takaha will pay.
3 4980 7980 6980
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.
4 4320 4320 4320 4320
15120
Only one of the four items gets the discount and the total is 4320 / 2 + 4320 + 4320 + 4320 = 15120 yen.