In this problem set, i was able to handle how to output a decimal in c++

Decimals.cpp

// Sololearn problem set for c++
// 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
// The youngest age is 15, so the group gets a 15% discount from the total price, which is $50 - 15% = $42.5

#include <iostream>
using namespace std;

int main() {
    int ages[5];
    for (int i = 0; i < 5; ++i) {
        cin >> ages[i];
    }
    //your code goes here
    int min ;
    min = ages[0];
    for (int x = 0; x < 5; x++){
        if( ages[x] < min){
            min = ages[x];  
        }       
    }
//   TO OUTPUT OUT DECIMALS USE (FLOAT)
     float percent =( (float) ( 50 * min ) / 100) ;
     cout <<  50 - percent << endl;  
    return 0;
}