feat(Week02): Add solutions

20 files changed, 376 insertions, 0 deletions

diff --git a/Week02/Exercise01/date.cpp b/Week02/Exercise01/date.cpp
new file mode 100644
index 0000000..ffc051e
--- /dev/null
+++ b/Week02/Exercise01/date.cpp
@@ -0,0 +1,31 @@
+#include <iostream>
+#include "date.h"
+
+const char* monthName(unsigned month) {
+	switch (month) {
+		case  1: return "Jan";
+		case  2: return "Feb";
+		case  3: return "Mar";
+		case  4: return "Apr";
+		case  5: return "May";
+		case  6: return "Jun";
+		case  7: return "Jul";
+		case  8: return "Aug";
+		case  9: return "Sep";
+		case 10: return "Oct";
+		case 11: return "Nov";
+		case 12: return "Dec";
+
+		default: return nullptr;
+	}
+}
+
+void printDate(const Date& d) {
+	std::cout << d.day << '/' << monthName(d.month) << '/' << d.year;
+}
+
+Date readDate() {
+	Date d;
+	std::cin >> d.day >> d.month >> d.year;
+	return d;
+}
diff --git a/Week02/Exercise01/date.h b/Week02/Exercise01/date.h
new file mode 100644
index 0000000..4d2ff1a
--- /dev/null
+++ b/Week02/Exercise01/date.h
@@ -0,0 +1,13 @@
+#ifndef _DATE
+#define _DATE
+
+struct Date {
+	unsigned day;
+	unsigned month;
+	unsigned year;
+};
+
+void printDate(const Date& d);
+Date readDate();
+
+#endif
diff --git a/Week02/Exercise01/main.cpp b/Week02/Exercise01/main.cpp
new file mode 100644
index 0000000..28856ef
--- /dev/null
+++ b/Week02/Exercise01/main.cpp
@@ -0,0 +1,12 @@
+#include <iostream>
+#include "date.h"
+
+int main() {
+	for (unsigned i = 0; i < 3; ++i) {
+		printDate(readDate());
+		std::cout << ' ';
+	}
+	std::cout << std::endl;
+
+	return 0;
+}
diff --git a/Week02/Exercise02/main.cpp b/Week02/Exercise02/main.cpp
new file mode 100644
index 0000000..4d43037
--- /dev/null
+++ b/Week02/Exercise02/main.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include "temperature.h"
+
+Temperature readTemperature() {
+	double degrees;
+	std::cin >> degrees;
+	char scale;
+	std::cin >> scale;
+
+	Temperature t;
+	switch (scale) {
+		case 'C': t.fromCelsius(degrees); break;
+		case 'F': t.fromFahrenheit(degrees); break;
+		case 'K': t.fromKelvin(degrees); break;
+	}
+
+	return t;
+}
+
+void printTemperature(const Temperature& t) {
+	std::cout << t.C << " C " << t.F << " F " << t.K << " K" << std::endl;
+}
+
+int main() {
+	Temperature first = readTemperature(), second = readTemperature();
+
+	printTemperature(first.Sum(second));
+
+	return 0;
+}
diff --git a/Week02/Exercise02/temperature.cpp b/Week02/Exercise02/temperature.cpp
new file mode 100644
index 0000000..3e497b9
--- /dev/null
+++ b/Week02/Exercise02/temperature.cpp
@@ -0,0 +1,21 @@
+#include "temperature.h"
+
+void Temperature::fromCelsius(double C) {
+	this->C = C;
+	F = (C * 1.8) + 32;
+	K = C + 273.15;
+}
+
+void Temperature::fromFahrenheit(double F) {
+	fromCelsius((F - 32) / 1.8);
+}
+
+void Temperature::fromKelvin(double K) {
+	fromCelsius(K - 273.15);
+}
+
+Temperature Temperature::Sum(const Temperature& other) {
+	Temperature t;
+	t.fromCelsius(this->C + other.C);
+	return t;
+}
diff --git a/Week02/Exercise02/temperature.h b/Week02/Exercise02/temperature.h
new file mode 100644
index 0000000..799313f
--- /dev/null
+++ b/Week02/Exercise02/temperature.h
@@ -0,0 +1,16 @@
+#ifndef _TEMPERATURE
+#define _TEMPERATURE
+
+struct Temperature {
+	double C;
+	double F;
+	double K;
+
+	void fromCelsius(double C);
+	void fromFahrenheit(double F);
+	void fromKelvin(double K);
+
+	Temperature Sum(const Temperature& other);
+};
+
+#endif
diff --git a/Week02/Exercise03/intarray.cpp b/Week02/Exercise03/intarray.cpp
new file mode 100644
index 0000000..3d8853d
--- /dev/null
+++ b/Week02/Exercise03/intarray.cpp
@@ -0,0 +1,27 @@
+#include "intarray.h"
+
+void IntArray::deleteSelf() {
+	delete[] elems;
+
+	size = 0;
+	elems = nullptr;
+}
+
+int IntArray::sum() {
+	int totalSum = 0;
+	for (unsigned i = 0; i < size; ++i)
+		totalSum += elems[i];
+	return totalSum;
+}
+
+IntArray newIntArray(unsigned size) {
+	IntArray ia;
+	ia.size = size;
+	ia.elems = new int[size];
+
+	return ia;
+}
+
+void deleteIntArray(IntArray& arr) {
+	arr.deleteSelf();
+}
diff --git a/Week02/Exercise03/intarray.h b/Week02/Exercise03/intarray.h
new file mode 100644
index 0000000..9f1c0b0
--- /dev/null
+++ b/Week02/Exercise03/intarray.h
@@ -0,0 +1,15 @@
+#ifndef _INTARRAY
+#define _INTARRAY
+
+struct IntArray {
+	unsigned size;
+	int* elems;
+
+	void deleteSelf();
+	int sum();
+};
+
+IntArray newIntArray(unsigned size);
+void deleteIntArray(IntArray& arr);
+
+#endif
diff --git a/Week02/Exercise03/main.cpp b/Week02/Exercise03/main.cpp
new file mode 100644
index 0000000..07f59fb
--- /dev/null
+++ b/Week02/Exercise03/main.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include "intarray.h"
+
+int main() {
+	unsigned N;
+	std::cin >> N;
+
+	IntArray ia = newIntArray(N);
+	for (unsigned i = 0; i < ia.size; ++i)
+		std::cin >> ia.elems[i];
+
+	std::cout << ((double)ia.sum() / ia.size) << std::endl;
+
+	deleteIntArray(ia);
+
+	return 0;
+}
diff --git a/Week02/Exercise04/main.cpp b/Week02/Exercise04/main.cpp
new file mode 100644
index 0000000..c02fd21
--- /dev/null
+++ b/Week02/Exercise04/main.cpp
@@ -0,0 +1,35 @@
+#include <iostream>
+#include "product.h"
+
+int main() {
+	unsigned productsCount;
+	std::cin >> productsCount;
+
+	Product* products = new Product[productsCount];
+
+	for (unsigned i = 0; i < productsCount; ++i) {
+		std::cin >> products[i].ID;
+		std::cin.ignore();
+		std::cin.getline(products[i].name, MAX_NAME_LENGTH);
+	}
+
+	for (unsigned i = 0; i < productsCount; ++i) {
+		unsigned ID, stockSize;
+		std::cin >> ID >> stockSize;
+
+		for (unsigned i = 0; i < productsCount; ++i) {
+			if (products[i].ID == ID) {
+				products[i].stockSize = stockSize;
+				break;
+			}
+		}
+	}
+
+	for (unsigned i = 0; i < productsCount; ++i) {
+		std::cout << products[i].name << ": " << products[i].stockSize << std::endl;
+	}
+
+	delete[] products;
+
+	return 0;
+}
diff --git a/Week02/Exercise04/product.h b/Week02/Exercise04/product.h
new file mode 100644
index 0000000..e83e5ee
--- /dev/null
+++ b/Week02/Exercise04/product.h
@@ -0,0 +1,12 @@
+#ifndef _PRODUCT
+#define _PRODUCT
+
+static const unsigned MAX_NAME_LENGTH = 256;
+
+struct Product {
+	unsigned ID;
+	char name[MAX_NAME_LENGTH];
+	unsigned stockSize;
+};
+
+#endif
diff --git a/Week02/Exercise05/main.cpp b/Week02/Exercise05/main.cpp
new file mode 100644
index 0000000..a79d628
--- /dev/null
+++ b/Week02/Exercise05/main.cpp
@@ -0,0 +1,49 @@
+#include <iostream>
+#include "package.h"
+#include "warehouse.h"
+
+int main() {
+	unsigned warehouseCount;
+	std::cin >> warehouseCount;
+
+	Warehouse* warehouses = new Warehouse[warehouseCount];
+
+	for (unsigned i = 0; i < warehouseCount; ++i) {
+		std::cin >> warehouses[i].ID >> warehouses[i].packageCapacity;
+		warehouses[i].packages = new Package[warehouses[i].packageCapacity];
+	}
+
+	unsigned packagesCount;
+	std::cin >> packagesCount;
+	std::cin.ignore();
+
+	for (unsigned i = 0; i < packagesCount; ++i) {
+		Package p = readPackage();
+
+
+		char warehouse;
+		std::cin >> warehouse;
+		std::cin.ignore();
+
+		for (unsigned i = 0; i < warehouseCount; ++i) {
+			if (warehouses[i].ID == warehouse) {
+				warehouses[i].storePackage(p);
+				break;
+			}
+		}
+	}
+
+	for (unsigned i = 0; i < warehouseCount; ++i) {
+		std::cout << warehouses[i].ID << ' ' << warehouses[i].storedPackages << '/' << warehouses[i].packageCapacity << std::endl;
+		for (unsigned j = 0; j < warehouses[i].storedPackages; ++j) {
+			std::cout << warehouses[i].packages[j].ID << std::endl;
+		}
+	}
+
+	for (unsigned i = 0; i < warehouseCount; ++i) {
+		delete[] warehouses[i].packages;
+	}
+	delete[] warehouses;
+
+	return 0;
+}
diff --git a/Week02/Exercise05/package.cpp b/Week02/Exercise05/package.cpp
new file mode 100644
index 0000000..b055fa7
--- /dev/null
+++ b/Week02/Exercise05/package.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+#include "package.h"
+
+Package readPackage() {
+	Package p;
+	std::cin.getline(p.ID, 11);
+	// Когато getline не стигне искания знак ('\n'),
+	// една специална "fail" променлива става true и
+	// това задължава всеки следващ вход да се провали.
+	// С clear правим "fail" променливата на false
+	std::cin.clear();
+	std::cin >> p.weight;
+	return p;
+}
diff --git a/Week02/Exercise05/package.h b/Week02/Exercise05/package.h
new file mode 100644
index 0000000..d076189
--- /dev/null
+++ b/Week02/Exercise05/package.h
@@ -0,0 +1,11 @@
+#ifndef _PACKAGE
+#define _PACKAGE
+
+struct Package {
+	char ID[11]; // 10 букви за кода и още една за терминираща нула
+	double weight;
+};
+
+Package readPackage();
+
+#endif
diff --git a/Week02/Exercise05/warehouse.cpp b/Week02/Exercise05/warehouse.cpp
new file mode 100644
index 0000000..ea968ab
--- /dev/null
+++ b/Week02/Exercise05/warehouse.cpp
@@ -0,0 +1,9 @@
+#include "warehouse.h"
+
+bool Warehouse::storePackage(const Package& p) {
+	if (storedPackages >= packageCapacity)
+		return false;
+
+	packages[storedPackages++] = p;
+	return true;
+}
diff --git a/Week02/Exercise05/warehouse.h b/Week02/Exercise05/warehouse.h
new file mode 100644
index 0000000..34f19b4
--- /dev/null
+++ b/Week02/Exercise05/warehouse.h
@@ -0,0 +1,15 @@
+#ifndef _WAREHOUSE
+#define _WAREHOUSE
+
+#include "package.h"
+
+struct Warehouse {
+	char ID;
+	Package* packages;
+	unsigned storedPackages;
+	unsigned packageCapacity;
+
+	bool storePackage(const Package& p);
+};
+
+#endif
diff --git a/Week02/Exercise06/main.cpp b/Week02/Exercise06/main.cpp
new file mode 100644
index 0000000..e1e6d58
--- /dev/null
+++ b/Week02/Exercise06/main.cpp
@@ -0,0 +1,13 @@
+#include <iostream>
+#include "time.h"
+
+// По условие не ни е поискана логика за главната функция,
+// но все пак е добра идея да се провери имплементацията
+int main() {
+	Time first = { 13, 4, 15 }, second = { 1, 59, 45 };
+	first.Advance(second);
+
+	std::cout << first.hour << ' ' << first.minutes << ' ' << first.seconds << std::endl;
+
+	return 0;
+}
diff --git a/Week02/Exercise06/time.cpp b/Week02/Exercise06/time.cpp
new file mode 100644
index 0000000..74b1447
--- /dev/null
+++ b/Week02/Exercise06/time.cpp
@@ -0,0 +1,19 @@
+#include "time.h"
+
+unsigned timeToMilliseconds(const Time& t) {
+	return (t.hour * 60 * 60 + t.minutes * 60 + t.seconds) * 1000;
+}
+
+void Time::Advance(const Time& other) {
+	// По-простия вариант е с експлицитни сметки, но помислете защо това работи
+	*this = millisecondsToTime(timeToMilliseconds(*this) + timeToMilliseconds(other));
+}
+
+Time millisecondsToTime(unsigned int milliseconds) {
+	Time t;
+	t.hour    = (milliseconds / 1000 / 60 / 60) % 24;
+	t.minutes = (milliseconds / 1000 / 60) % 60;
+	t.seconds = (milliseconds / 1000) % 60;
+
+	return t;
+}
diff --git a/Week02/Exercise06/time.h b/Week02/Exercise06/time.h
new file mode 100644
index 0000000..a3a5921
--- /dev/null
+++ b/Week02/Exercise06/time.h
@@ -0,0 +1,14 @@
+#ifndef _TIME
+#define _TIME
+
+struct Time {
+	unsigned hour;
+	unsigned minutes;
+	unsigned seconds;
+
+	void Advance(const Time& other);
+};
+
+Time millisecondsToTime(unsigned milliseconds);
+
+#endif
diff --git a/Week02/README.md b/Week02/README.md
new file mode 100644
index 0000000..01c0271
--- /dev/null
+++ b/Week02/README.md
@@ -0,0 +1,3 @@
+# Задачи
+
+<https://syndamia.com/teaching/oop-2025/week02/>