diff --git a/Seminar02/solutions/sem_2.cpp b/Seminar02/solutions/sem_2.cpp
new file mode 100644
index 0000000..edf3d73
--- /dev/null
+++ b/Seminar02/solutions/sem_2.cpp
@@ -0,0 +1,336 @@
+
+#include <iostream>
+using namespace std;
+int main() {
+		    //zad1
+			/*int year;
+			cin >> year;
+			if (year % 100 == 0) {
+				if (year % 400 == 0) {
+					cout << "leap";
+				} else{
+					cout << "not leap";
+				}
+			} else if (year % 4 == 0) {
+				cout << "leap";
+			} else {
+				cout << "not leap";
+			}*/
+
+			//zad2
+			/*char symbol;
+			cin >> symbol;
+			if (symbol >= 'a' && symbol <= 'z' || symbol >= 'A' && symbol <= 'Z') {
+				switch (symbol) {
+				case 'A':
+				case 'E':
+				case 'I':
+				case 'O':
+				case 'U':
+				case 'a':
+				case 'e':
+				case 'i':
+				case 'o':
+				case 'u':
+					cout << "Vowel";
+					break;
+				default: cout << "Consonant";
+				}
+			}
+			else {
+				cout << "Not a latin letter";
+			}*/
+
+			//zad3
+			/*int a, b;
+			cin >> a >> b;
+			if(a!=b){
+				int result = (a > b) ? a : b;
+			cout << result;
+			}
+			else {
+				cout << "Invalid input";
+
+			}*/
+
+			//zad4
+			/*double grade;
+			cin >> grade;
+			if (grade >= 90 && grade <= 100) {
+				cout << "6+";
+			}
+			else if (grade >= 80) {
+				cout << "6";
+			}
+			else if (grade >= 70) {
+				cout << "5";
+			}
+			else if (grade >= 60) {
+				cout << "4";
+			}
+			else if (grade >= 40) {
+				cout << "3";
+			}
+			else if (grade < 40 && grade >= 0) {
+				cout << "2";
+			}*/
+
+			//zad5
+			/*double a, b, c;
+			cin >> a >> b >> c;
+			if (a + b > c && a + c > b && b + c > a) {
+				cout << "Valid triangle";
+			}
+			else {
+				cout << "Invalid triangle";
+			}*/
+
+			//zad6
+			/*int input;
+			cin >> input;
+			switch (input) {
+			case 1:
+				cout << "Yellow! Caution!"<<endl;
+			case 2:
+				cout << "Red! Stop!"<<endl;
+			case 3:
+				cout << "Yellow! Get ready!"<<endl;
+			case 4:
+				cout << "Green! Go!"<<endl;
+				break;
+			default: cout << "Please enter a number between 1 and 4";
+				}*/
+
+				//zad7
+				/*char symbol;
+				cin >> symbol;
+				if (symbol >= 'a' && symbol <= 'z') {
+					char uppercase = symbol - 32;
+					cout << uppercase;
+
+				} else if (symbol >= 'A' && symbol <= 'Z') {
+					char lowercase = symbol + 32;
+					cout << lowercase;
+				}
+				else {
+					cout << "Invalid character";
+				}*/
+
+				//zad8
+				/*int a;
+				cout << "Arabic numeral: ";
+				cin >> a;
+				cout << "Roman numeral: ";
+				switch (a) {
+					case 1:
+						cout << "I";
+						break;
+					case 2:
+						cout << "II";
+						break;
+					case 3:
+						cout << "II";
+						break;
+					case 4:
+						cout << "IV";
+						break;
+					case 5:
+						cout << "V";
+						break;
+					case 6:
+						cout << "VI";
+						break;
+					case 7:
+						cout << "VII";
+						break;
+					case 8:
+						cout << "VIII";
+						break;
+					case 9:
+						cout << "IX";
+						break;
+				}*/
+
+
+				//zad9
+				/*int a, b, c;
+				cin >> a >> b >> c;
+
+				if (a <= b && a <= c) {
+					cout << a << " ";
+					if (b <= c || a == b) {
+						cout << b << " " << c;
+					}
+					else if(c <= b || a == c){
+						cout << c << " " << b;
+					}
+				}
+				else if (b <= a && b <= c) {
+					cout << b << " ";
+					if (a <= c || b == a) {
+						cout << a << " " << c;
+					}
+					else if( c <= a || b == c){
+						cout << c << " " << a;
+					}
+				}
+				else if (c <= a && c <= b) {
+					cout << c << " ";
+					if (a <= b || c == a) {
+						cout << a << " " << b;
+					}
+					else if(b <= a || c == b){
+						cout << b << " " << a;
+					}
+				}*/
+
+				//zad10
+				/*int a, b;
+				char operation;
+				cin >> a >> operation >> b;
+				if (a == 0 || b == 0 && operation == '/') {
+					cout << "Invalid operation";
+				}
+				else {
+					int result = 0;
+					switch (operation) {
+						case '+':
+							result = a + b;
+							break;
+						case '-':
+							result = a - b;
+							break;
+						case '*':
+							result = a * b;
+							break;
+						case '/':
+							result = a / b;
+							break;
+					}
+					cout << result;
+				}*/
+
+				//zad11
+				/*int a, b, c;
+				cin >> a >> b >> c;
+				if (a == 0 && b == 0 && c == 0) {
+					cout << "Invalid input";
+				}
+				else if (a >= b && a >= c) {
+					cout << a;
+					if (b >= c || a == b) {
+						cout << b << c;
+					}
+					else if(c >= b || a == c){
+						cout << c << b;
+					}
+				}
+				else if (b >= a && b >= c) {
+					cout << b;
+					if (a >= c || b == a) {
+						cout << a << c;
+					}
+					else if( c >= a || b == c){
+						cout << c << a;
+					}
+				}
+				else if (c >= a && c >= b) {
+					cout << c;
+					if (a >= b || c == a) {
+						cout << a << b;
+					}
+					else if(b >= a || c == b){
+						cout << b << a;
+					}
+				}*/
+
+				//zad12
+				/*int day, month;
+				cin >> day >> month;
+				bool validDay = true;
+				bool validMonth = true;
+				switch (month) {
+
+					case 1://31 days
+					case 3:
+					case 5:
+					case 7:
+					case 8:
+					case 10:
+						if (day >= 1 && day <= 30) {
+							day += 1;
+						}
+						else if (day == 31) {
+							day = 1;
+							month += 1;
+						}
+						else {
+							validDay = false;
+						}
+						break;
+
+					case 12://december
+						if (day >= 1 && day <= 30) {
+							day += 1;
+						}
+						else if (day == 31) {
+							day = 1;
+							month = 1;
+						}
+						else {
+							validDay = false;
+						}
+						break;
+
+					case 4://30 days
+					case 6:
+					case 9:
+					case 11:
+						if (day >= 1 && day <= 29) {
+							day += 1;
+						}
+						else if (day == 30) {
+							day = 1;
+							month += 1;
+						}
+						else {
+							validDay = false;
+						}
+						break;
+
+					case 2://28 days
+						if (day >= 1 && day <= 27) {
+							day += 1;
+						}
+						else if (day == 28) {
+							day = 1;
+							month = 3;
+						}
+						else {
+							validDay = false;
+						}
+						break;
+
+					default: validMonth = false;
+				}
+
+				if (validDay && validMonth) {
+				std:: cout << day << " " << month;
+				}
+				else {
+					std::cout << "Invalid day or month";
+				}*/
+
+				//zad13
+	            int a, b, c;
+	            cin >> a >> b >> c;
+	           	int largest = ((a > b) ? ((a > c) ? a : c) : ((b > c) ? b : c));
+		        cout << largest;
+return 0;
+            
+
+
+
+           }
+
+