#include <vector> using namespace std; int main(int argc, char** argv) { vector<int> intVector(10, 0); intVector.assign(5, 100); vector<int> v1(10, 0); vector<int> v2(5, 100); v1.swap(v2); // v1 now has 5 elements with the value 100. // v2 now has 10 elements with the value 0 return (0); }