[w5] Added solutions to exercises 1-7

1 files changed, 94 insertions, 0 deletions

diff --git a/week05/Exercise7.cpp b/week05/Exercise7.cpp
new file mode 100644
index 0000000..38da2e0
--- /dev/null
+++ b/week05/Exercise7.cpp
@@ -0,0 +1,94 @@
+#include <iostream>
+#include <random>
+
+int rand(int min, int max) {
+	return rand() % max + min;
+}
+
+struct WaterMeter {
+private:
+	double usedWater;
+
+public:
+	WaterMeter() {
+		usedWater = 0.0;
+	}
+
+	void AddWater(double amount) {
+		usedWater += amount;
+	}
+	void Print() {
+		std::cout << usedWater;
+	}
+};
+
+struct Building {
+private:
+	WaterMeter* meters;
+	unsigned size;
+
+	void free() {
+		delete[] meters;
+	}
+	void copyFrom(const Building& other) {
+		this->size = other.size;
+		this->meters = new WaterMeter[size];
+		for (int i = 0; i < size; i++) {
+			this->meters[i] = other.meters[i];
+		}
+	}
+
+public:
+	Building(unsigned size) {
+		this->size = size;
+		meters = new WaterMeter[size];
+	}
+
+	Building() {
+		meters = nullptr;
+		size = 0;
+	}
+	~Building() {
+		free();
+	}
+	Building(const Building& other) {
+		copyFrom(other);
+	}
+	Building& operator=(const Building& other) {
+		if (this != &other) {
+			free();
+			copyFrom(other);
+		}
+		return *this;
+	}
+
+	void SimulateDay() {
+		for (int i = 0; i < size; i++) {
+			meters[i].AddWater(rand(0, 999) / 100.0);
+		}
+	}
+	void SimulateMonth() {
+		WaterMeter** reports = new WaterMeter*[5];
+		for (int i = 0; i < 5; i++) {
+			reports[i] = new WaterMeter[size];
+		}
+
+		for (int day = 0; day <= 30; day++) {
+			SimulateDay();
+			if (day % 5 == 0 && day > 0) {
+				unsigned reportIndex = day / 5 - 1;
+				for (int i = 0; i < size; i++) {
+					reports[reportIndex][i] = meters[i];
+				}
+			}
+		}
+
+		for (int meterI = 0; meterI < size; meterI++) {
+			for (int reportI = 0; reportI < 5; reportI++) {
+				reports[reportI][meterI].Print();
+				std::cout << " ";
+			}
+			std::cout << std::endl;
+		}
+	}
+};