문제
풀이
#include <iostream>
#include <iomanip>
using namespace std;
void solve(void) {
double a, b, c; cin >> a >> b >> c;
cout << fixed << setprecision(7) << a * c / b;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}