#include <iostream>
#include <vector>
using namespace std;
int main() {
vector<int> v; // a vector of integers
// Adding elements
v.push_back(10);
v.push_back(20);
v.push_back(30);
// Printing elements
cout << "Vector elements: ";
for (int i = 0; i < v.size(); i++) {
cout << v[i] << " ";
}
cout << endl;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8dmVjdG9yPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CiAgICB2ZWN0b3I8aW50PiB2OyAgIC8vIGEgdmVjdG9yIG9mIGludGVnZXJzCgogICAgLy8gQWRkaW5nIGVsZW1lbnRzCiAgICB2LnB1c2hfYmFjaygxMCk7CiAgICB2LnB1c2hfYmFjaygyMCk7CiAgICB2LnB1c2hfYmFjaygzMCk7CgogICAgLy8gUHJpbnRpbmcgZWxlbWVudHMKICAgIGNvdXQgPDwgIlZlY3RvciBlbGVtZW50czogIjsKICAgIGZvciAoaW50IGkgPSAwOyBpIDwgdi5zaXplKCk7IGkrKykgewogICAgICAgIGNvdXQgPDwgdltpXSA8PCAiICI7CiAgICB9CiAgICBjb3V0IDw8IGVuZGw7Cn0K