955A - Feed the cat - CodeForces Solution

#include <iostream>

#include <cmath>

#include <sstream>

#include <algorithm>

#include <vector>

#include <bits/stdc++.h>

#include<map>

typedef long long ll;

using namespace std;

int main()

{

	double hh, m,h,d,c,n;

	cin >> hh >> m>>h>>d>>c>>n;

	double c1 = 0, c2 = 0;

	double carry,carry2;

	if (hh >= 20) {

		carry = (h / n);

		ll a = carry;

		if (a != carry) {

			carry = a + 1;

		}

		c1 = (carry * c)*0.8;

		cout << c1 ;

	}

	else {

		double lage = 0;

		lage = ((20 - hh) * 60) - m;

		double carryh = h;

		h = h + (d * lage);

		carry = (h / n);

		ll a = carry;

		if (a != carry) {

			carry = a + 1;

		}

		c1 = (carry * c) * 0.8;

		carry2 = (carryh / n);

		ll b = carry2;

		if (b != carry2) {

			carry2 = b + 1;

		}

		c2 = (carry2 * c);

		double ans = 0;

		ans = min(c1, c2);

		cout << ans;

	}

}