#include <stl.h> #include <iostream.h> int main () { vector <int> v1 (20); for (int i = 0; i < v1.size (); i++) { v1[i] = i/4; cout << v1[i] << ' '; } int* location = lower_bound (v1.begin (), v1.end (), 3); cout << "\n3 can be inserted at index: " << (location - v1.begin ()) << endl; return 0; }