#include <iostream>
#include<vector>
using namespace std;
void print(vector<int>);
int sum(vector<int>);
int main()
{
vector<int> vec;
vec.push_back(34);
vec.push_back(23);
print(vec);
vector<int>::iterator p;
p = vec.begin();
*p = 68;
*(p+1) = 69;
print(vec);
vec.pop_back();
print(vec);
vec.push_back(101);
vec.push_back(102);
int i = 0;
while(i < vec.size())
{
cout<<vec[i++]<< " ";
}
cout<<endl;
cout<<"the sum in vector is:"<<sum(vec)<<endl;
return 0;
}
void print(vector<int> v)
{
cout<<"vector size is :"<<v.size()<<endl;
}
int sum(vector<int> v)
{
int result = 0;
vector<int>::iterator p = v.begin();
while(p!=v.end())
{
result += *p++;
}
return result;
}
