#include <iostream>

3 #include<vector>

4 using namespace std;

5 int main() {

6

ite code here

6

vector<int> v ={56,78,34,45};

7

cout<<"initial vector: "<<"\n";

2

8

9

for(int i:v)

10

cout<<i<<"\n";

11 v.push_back(100);

12 v.push_back(200);

C

13 cout<<"after adding two elements, contents of vector are:\n";

14

for(int i:v)

15

cout<<i<<"\n";

16 cout<<"element at index 1: "<<v.at(1)<<"\n";

17 cout<<"element at index 3: "<<v.at(3)<<"\n";

JS

GO

18 v.at(4)=700;

19 cout<<"after updating, the contents of vector:\n";

20 for(int i:v)

21

cout<<i<<"\n";v.pop_back();

24 v.pop_back();

JS

25 cout<<"after deleting an element, contents of vector are:\n";

GO

26 for(int 1:v)

27

cout<<i<<"\n";

28

return 0;