Solved exercises 1 and 2 from programming introduction homework

1 files changed, 69 insertions, 0 deletions

diff --git a/Year 1/Programming introduction/Homeworks/homework1.cpp b/Year 1/Programming introduction/Homeworks/homework1.cpp
new file mode 100644
index 0000000..8a06baf
--- /dev/null
+++ b/Year 1/Programming introduction/Homeworks/homework1.cpp
@@ -0,0 +1,69 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+/*
+ * Exercise 1
+ */
+
+double f(unsigned int k, int x) {
+	if (k == 1) return x;
+
+	if (k & 1)
+		return 3 * f(k - 1, x) + 1;
+	return f(k - 1, x) / 2;
+}
+
+void ex1() {
+	int x;
+	cin >> x;
+
+	cout << f(35, x) << endl;
+}
+
+/*
+ * Exercise 2
+ */
+
+void setMarmaladeType(int type, int *blueberryMarmalades, int *peachMarmalades, int *rosehipMarmalades) {
+	if      (type %  7 == 0) *blueberryMarmalades += 1;
+	else if (type % 13 == 0) *peachMarmalades += 1;
+	else if (type % 17 == 0) *rosehipMarmalades += 1;
+}
+
+void ex2() {
+	int archiveLength;
+	cin >> archiveLength;
+
+	int blueberryMarmalades = 0, peachMarmalades = 0, rosehipMarmalades = 0;
+
+	for (int i = 0, digit, countryDigits, typeDigits, type; i < archiveLength; i++) {
+		cin >> digit;
+		cout << digit;
+
+		if (i % 8 == 0) {
+			countryDigits = 1;
+			typeDigits = type = 0;
+		}
+		else if (countryDigits < 3) {
+			countryDigits++;
+		}
+		else if (typeDigits < 4) {
+			typeDigits++;
+			(type *= 10) += digit;
+		}
+		else if (typeDigits == 4) {
+			cout << endl;
+			setMarmaladeType(type, &blueberryMarmalades, &peachMarmalades, &rosehipMarmalades);
+		}
+	}
+
+	cout << "Мармалад от боровинки: " << blueberryMarmalades << endl;
+	cout << "Мармалад от праскови: " << peachMarmalades << endl;
+	cout << "Шипков мармалад: " << rosehipMarmalades << endl;
+}
+
+int main() {
+	ex2();
+}