Merge pull request #2 from mc-cat-tty/lezione-4

add esercizio
mc-cat-tty · Oct 5, 2021 · 847c447 · 847c447
2 parents e37a6a8 + bcbd85f
commit 847c447
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diff --git a/esercitazioni/a.out b/esercitazioni/a.out
diff --git a/esercitazioni/download_from_server.cpp b/esercitazioni/download_from_server.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+
+using namespace std;
+
+int main() {
+	// [kb/s]
+	const int	V1_MAX	= 200,	// if t <= 60 min
+				V1_MIN	= 50,	// if t > 60 min
+				V2		= 100;	// always
+	const int	V1_MAX_TIME_SECONDS = 60*60;
+	int dim;					// dimensione film [kb]
+
+	cout << "Dimensione film [kb]: ";
+	cin >> dim;
+
+	int t_v1_max = dim/V1_MAX;
+	if (t_v1_max <= 60)
+		cout << "Server 1 in " << t_v1_max/60;
+	else {
+		int max_dim_v1_max = V1_MAX*V1_MAX_TIME_SECONDS;
+		int dim_v1_min = dim-max_dim_v1_max;
+		int t_v1_min = dim_v1_min/V1_MIN;
+		int t_v2 = dim/V2;
+		if (V1_MAX_TIME_SECONDS+t_v1_min <= t_v2)
+			cout << "Server 1 in " << (V1_MAX_TIME_SECONDS+t_v1_min)/60;
+		else
+			cout << "Server 2 in " << t_v2/60;
+	}
+	cout << endl;
+
+	return 0;
+}