stl

//https://en.cppreference.com/w/cpp/container
//http://www.cplusplus.com/reference/vector/vector/?kw=vector
#include<bits/stdc++.h>
#include<vector>
using namespace std;
int main()
{
vector <int> vec/*size bole dile first bracket a dite hoy then input vec[1]=value dite hoy.size bole dile same array hoye jay.for loop diye array er moto nite hoy input*/(5);
vec.push_back(1);
vec.push_back(3);
vec.push_back(6);
vec.push_back(8);
vec.push_back(11);
vec.push_back(18);
int a=vec.size();
for(int i=0;i<a;i++){
    cout<<vec[i]<<endl;
}
return 0;
}