#include <vector> include <iostream> include <string> include <iterator> include <algorithm> using namespace std;int main(){ int arr[] = {1,2,3};vector<int> x(arr,arr+3);x.insert(x.begin()+1,4);copy(x.begin(),x.end(),ostream_iterator<int>(cout," "));} ...
include <vector>#include <iostream>#include <string>#include <iterator>#include <algorithm>using namespace std;int main(){int arr[] = {1,2,3};vector<int> x(arr,arr+3);x.insert(x.begin()+1,4);copy(x.begin(),x.end(),ostream_iterator<int>(cout," "));} ...