Operation of vectors in the "STL" standard library

#include <iostream> #include <vector> #include <iterator> int main () {int ar[10] = {11, 12, 13, 14, 1
	5, 16, 17, 18, 19, 20};
	Std::vector<int> V (AR, ar+10);

	Std::vector<int> v1 (5, 88); 
	Traverse Vector for (std::vector<int>::iterator it=v.begin (); It!=v.end (); ++it) std::cout << *it << "";

	Std::cout << Std::endl;
	Adds a member to the container, and the vector does not support V.push_back (21) that was previously inserted;
	For (Std::vector<int>::iterator It=v.begin (); It!=v.end (); ++it) std::cout << *it << "";

	Std::cout << Std::endl;
	Insert Value Method 1 V.insert (V.begin () +1, 99);
	For (Std::vector<int>::iterator It=v.begin (); It!=v.end (); ++it) std::cout << *it << "";
	Std::cout << Std::endl;
	Insert Value Method 2 V1.insert (V1.begin () +1, V.begin () +2, V.begin () +5);
	For (Std::vector<int>::iterator It=v1.begin (); It!=v1.end (); ++it) std::cout << *it << "";

	Std::cout << Std::endl;
	Assignment V1.assign (6, 77); for (std::vector<Int>::iterator It=v1.begin (); It!=v1.end ();
	++it) std::cout << *it << "";

	Std::cout << Std::endl;	Query Value Std::cout << v.front () << "";	The 0th member of v Std::cout << v.back () << "";	The last member of V Std::cout << v.at (3) << "";		V's fourth member Std::cout << v[3] << "";
	
	V's fourth member Std::cout << Std::endl;
	Delete value V.pop_back ();
	For (Std::vector<int>::iterator It=v.begin (); It!=v.end (); ++it) std::cout << *it << "";

	Std::cout << Std::endl;
	V.erase (V.begin () +2, V.begin () +4);
	For (Std::vector<int>::iterator It=v.begin (); It!=v.end (); ++it) std::cout << *it << "";

	Std::cout << Std::endl;
return 0; }