initial commit

Author: dimkatsi91

2D_vector.cpp

@@ -0,0 +1,50 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+template<class T>
+void print_2D( const vector< vector<T> > & );
+
+
+int main() {
+  vector< vector<int> >  matrix = { {1,2,3},
+                                    {4,5,6},
+                                    {7,8,9}};
+
+
+  print_2D<int> ( matrix );
+
+  return 0;
+}
+
+
+template<class T>
+void print_2D( const vector<vector<T>> &vect ) {
+  // 1st way of elements access - printing
+  /*
+  for(auto& row : vect) {
+    for(auto& col : row) {
+      cout << col << " ";
+    }
+    cout << endl;
+  }
+  */
+  // 2nd way of elements access - printing 
+  for( auto row = begin(vect); row != end(vect); row++ ) {
+    for( auto col = row->begin(); col != row->end(); col++ ) {
+      cout << *col << " ";
+    }
+    cout << endl;
+  }
+  // 3rd way of elements access - printing
+  /*
+  for(size_t i=0; i<vect.size(); i++) {
+    for(size_t j=0; j<vect[i].size(); j++) {
+      cout << vect[i][j] << " ";
+    }
+    cout << "\n";
+  }
+  */
+}

Being_ex.cpp

@@ -0,0 +1,69 @@
+#include <iostream>
+//#include <deque>
+#include <string>
+
+using namespace std;
+
+template<class T1, class T2, class T3>
+class Being {
+private:
+    string name;
+    T1 age;
+    T2 height;
+    T3 weight;
+public:
+    Being(string newName, T1 newAge, T2 newHeight, T3 newWeight)
+        : name(newName), age(newAge), height(newHeight), weight(newWeight) {}
+    ~Being() {}
+    string getName() const { return name; }
+    T1 getAge() const { return age; }
+    T2 getHeight() const { return height; }
+    T3 getWeight() const { return weight; }
+    virtual void hello() {
+        cout << "Hello WOrld!\n";
+    }
+};
+
+template<class T1, class T2, class T3>
+class Person : public Being<T1,T2,T3> {
+private:
+    string city;
+public:
+    Person(string nm, T1 ag, T2 hg, T3 wg, string newCity)
+        : Being<T1, T2, T3>(nm, ag, hg, wg)
+    {
+        city = newCity;
+    }
+    ~Person() {}
+    void hello()
+    {
+        cout << "\nName: " << Being<T1,T2,T3>::getName() << "\n"
+             << "Age: " << Being<T1,T2,T3>::getAge() << "\n"
+             << "Height: " << Being<T1,T2,T3>::getHeight() << "\n"
+             << "Weight: " << Being<T1,T2,T3>::getWeight() << "\n"
+             << "City:  " << city << "\n\n";
+    }
+};
+
+
+
+int main()
+{
+    Person<int, double, double> diman("Dimos", 26, 1.78, 78.2, "Agrinio");
+    Person<int, double, double> * dim = &diman;
+    //diman.hello();
+    //dim->hello();
+
+    const int SIZE = 3;
+    Person<int, double, double> *arr[SIZE] = {
+        new Person<int, double, double> ("Dimos", 26, 1.78, 78.2, "Agrinio"),
+        new Person<int, double, double> ("George", 29, 1.70, 89.5, "Agrinio"),
+        new Person<int, double, double> ("Andrew", 56, 1.74, 88.4, "Agrinio")
+    };
+
+    for(unsigned i=0; i<SIZE; ++i) {
+        arr[i]->hello();
+    }
+
+    return 0;
+}