Ticket office C++

Question

You are working on a ticketing system. A ticket costs $10.
The office is running a discount campaign: each group of 5 people is getting a discount, which is determined by the age of the youngest person in the group.
You need to create a program that takes the ages of all 5 people as input and outputs the total price of the tickets.

Sample Input:
55
28
15
38
63

Sample Output:
42.5
MY CODE:
#include <iostream>
using namespace std;
int main()
{
int ages[5];
for(int i=0; i<5; i++){
cin >> ages[i];
}
int temp = ages[5];
for(int i=0; i<5; i++)
{
if(temp>ages[i]){
temp = ages[i];
}
}
float d = 50*(temp/100.00);
float total = 50-d;
cout << "

Answer 1

(int temp = ages[5]) ages[5] it's not an element of ages, the last element of ages is ages[4]

This will result in an undefined behavior