Safari

#include <iostream>
#include <string>

using namespace std;

int main() {
    double budget, fuel;
    cin >> budget >> fuel;

    string day;
    cin >> day;

    double sum = 2.10 * fuel + 100;

    if (day == "Saturday") {
        sum *= 0.90;
    }
    else {
        sum *= 0.80;
    }

    if (budget >= sum) {
        printf("Safari time! Money left: %.2f lv.\n", budget - sum);
    }
    else{
        printf("Not enough money! Money needed: %.2f lv.\n", sum - budget);
    }
    return 0;
}