Initial commit

c++/Others/A vector may allocate more memory than it currently needs..cpp

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+A vector may allocate more memory than it currently needs.
+#include <iostream>
+#include <vector>
+using namespace std;
+
+int main()
+{
+  vector<char> vectorObject(10);
+
+  cout << "Initial size: " << vectorObject.size() << endl;
+  cout << "Initial capacity: " << vectorObject.capacity();
+  cout << "\n\n";
+ 
+  vectorObject.push_back('X');
+
+  cout << "Size after push_back: " << vectorObject.size() << endl;
+  cout << "New capacity: " << vectorObject.capacity();
+  cout << "\n\n";
+
+  vectorObject.resize(100);
+
+  cout << "Size after resize: " << vectorObject.size() << endl;
+  cout << "Capacity after resize: " << vectorObject.capacity();
+  cout << "\n\n";
+
+  vectorObject.push_back('Y');
+
+  cout << "Size after push_back: " << vectorObject.size() << endl;
+  cout << "New capacity: " << vectorObject.capacity();
+  cout << "\n\n";
+
+  return 0;
+}