What am i doing wrong? It wont output decimals

Question

#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 b;
int g;
int s = 0;
double Percent;
double Discount;
double Savings;
do{
int a = ages[s];

b = ages[0];

if(b >= a){
g = ages[s];

}

s++;
}while(s < 5);

Percent = g / 100;

Savings = Discount - 50;
cout << Percent;

return 0;
}

Answer 1

int min = ages[0];
for (int i = 0; i < 5; ++i) {
if (ages[i]<min) min = ages[i];
}

double sum = 50-(min/2.0);
cout << sum;