Added todays oop practice

1 files changed, 136 insertions, 0 deletions

diff --git a/Year 1/Object-oriented Programming/03-Practice-08.03.2022.cpp b/Year 1/Object-oriented Programming/03-Practice-08.03.2022.cpp
new file mode 100644
index 0000000..b148159
--- /dev/null
+++ b/Year 1/Object-oriented Programming/03-Practice-08.03.2022.cpp
@@ -0,0 +1,136 @@
+#include <iostream>
+#include <fstream>
+#include <cstring>
+
+const int LINE_BUFFER_SIZE = 1024;
+const int MAX_COMPANY_NAME_SIZE = 25;
+
+struct JobOffer {
+	char CompanyName[MAX_COMPANY_NAME_SIZE];
+
+	unsigned int ProgrammersInTeam;
+	unsigned int PayedTimeOff;
+	long long SalaryAfterFinishedProduct;
+};
+
+void coutJobOffer(JobOffer& jo) {
+	std::cout << jo.CompanyName << " | Programmers: " << jo.ProgrammersInTeam << " | Time Off: " << jo.PayedTimeOff << " | Salary: " << jo.SalaryAfterFinishedProduct << std::endl;
+}
+
+struct JobOfferCollection {
+	JobOffer* items;
+	int count;
+	int length;
+};
+
+void addJOtoJOC(JobOffer& jo, JobOfferCollection& joc) {
+	if (joc.count == joc.length) {
+		JobOffer* temp = new JobOffer[joc.length <<= 1];
+		for (int i = 0; i < joc.count; i++) temp[i] = joc.items[i];
+		delete[] joc.items;
+		joc.items = temp;
+	}
+
+	joc.items[joc.count++] = jo;
+}
+
+void cinJobOffer(JobOffer& jo) {
+	char buffer[MAX_COMPANY_NAME_SIZE];
+	std::cin.ignore();
+	std::cin.getline(buffer, MAX_COMPANY_NAME_SIZE);
+	strcpy(jo.CompanyName, buffer);
+
+	std::cin >> jo.ProgrammersInTeam >> jo.PayedTimeOff >> jo.SalaryAfterFinishedProduct;
+}
+
+int saveToFile(JobOfferCollection& joc, const char* fileName) {
+	std::ofstream outFile(fileName, std::ios::binary | std::ios::app);
+	if (!outFile.is_open())
+		return -1;
+
+	for (int i = 0; i < joc.length; i++) {
+		outFile.write(joc.items[i].CompanyName, MAX_COMPANY_NAME_SIZE);
+		outFile.write((char*)&joc.items[i].ProgrammersInTeam, sizeof(joc.items[i].ProgrammersInTeam));
+		outFile.write((char*)&joc.items[i].PayedTimeOff, sizeof(joc.items[i].PayedTimeOff));
+		outFile.write((char*)&joc.items[i].SalaryAfterFinishedProduct, sizeof(joc.items[i].SalaryAfterFinishedProduct));
+	}
+
+	outFile.close();
+
+	return 1;
+}
+
+JobOfferCollection readFromFile(const char* fileName) {
+	std::ifstream inFile(fileName, std::ios::binary);
+	if (!inFile.is_open())
+		return {};
+
+	JobOfferCollection joc = { new JobOffer[1], 0, 1 };
+	while (!inFile.eof()) {
+		JobOffer newJo = {};
+		inFile.read(newJo.CompanyName, MAX_COMPANY_NAME_SIZE);
+		inFile.read((char*)&newJo.ProgrammersInTeam, sizeof(newJo.ProgrammersInTeam));
+		inFile.read((char*)&newJo.PayedTimeOff, sizeof(newJo.PayedTimeOff));
+		inFile.read((char*)&newJo.SalaryAfterFinishedProduct, sizeof(newJo.SalaryAfterFinishedProduct));
+		addJOtoJOC(newJo, joc);
+	}
+
+	inFile.close();
+
+	return joc;
+}
+
+void filterOffers(const char* filePath, long long minSalary) {
+	JobOfferCollection readJoc = readFromFile(filePath);
+
+	for (int i = 0; i < readJoc.count; i++)
+		if (readJoc.items[i].SalaryAfterFinishedProduct >= minSalary)
+			coutJobOffer(readJoc.items[i]);
+
+	delete[] readJoc.items;
+}
+
+bool existOffer(const char* filePath, const char* name) {
+	bool toRet = false;
+	JobOfferCollection readJoc = readFromFile(filePath);
+
+	for (int i = 0; i < readJoc.count; i++) {
+		if (!strcmp(readJoc.items[i].CompanyName, name)) {
+			toRet = true;
+			break;
+		}
+	}
+
+	delete[] readJoc.items;
+	return toRet;
+}
+
+void taskSaveItems() {
+	int n;
+	std::cin >> n;
+
+	JobOfferCollection joc = { new JobOffer[n], n, n };
+
+	for (int i = 0; i < joc.length; i++)
+		cinJobOffer(joc.items[i]);
+
+	saveToFile(joc, "shefove.joc");
+
+	delete[] joc.items;
+}
+
+void taskSalary() {
+	int minSalary;
+	std::cin >> minSalary;
+
+	filterOffers("shefove.joc", minSalary);
+}
+
+void taskExistOffer() {
+	char buff[LINE_BUFFER_SIZE];
+	std::cin.getline(buff, LINE_BUFFER_SIZE);
+	std::cout << existOffer("shefove.joc", buff) << std::endl;
+}
+
+int main() {
+}