C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs

#include <iostream> 
#include <vector> 
 
using namespace std; 
 
int main() 
{ 
    vector<int> v; 
 
    for (int i = 1; i <= 5; i++) 
        v.push_back(i); 
 
    vector<int> :: const_iterator i;
   	for (i = v.begin(); i != v.end(); ++i) 
        cout << *i << " ";
    cout<<endl;
 
    return 0; 
}

================ code ================
vector<int>::iterator i1; 
for (i1=v1.begin();i1!=v1.end();++i1) 
	*i1 = 1;
======================================