vector vs = {"abc","xyz","mnq"};
vector::iterator itr = vs.begin();
for(; itr != vs.end(); itr++)
{
cout<<*itr<int arr[10] = {1,2,3,4,5,6,7};
for(auto &i: arr)
{
cout<map mis={
{1,"c++"},
{2,"java"},
{3,"python"}
};
map::iterator itr = mis.begin();
for(; itr != mis.end(); ++itr)
{
cout<<(*itr).first<<"\t"<second<
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