Question

Please answer in C++ ONLY, and please fill all comments elaboratively.

Question 1 Let's consider the following code * * * * Compile and fix all errors No test cases are required for this question. Run and provide a single screenshot showing the output. Complete the missing comments to explain the action performed by each statement highlighted in red. The first comment is given as an example. Copy and paste the source code with the comments filled out in your report * include <ve ctor> Compiler directive to use vectors #include <iostream> using namespace std; int main ) vector<double> v; v.assign( 8, 16.3; v[2]= 16.4; v[3]= 20.6; v.push_back (17.8) ν.push-back (-7. 3) ; // for ( int i- 0; i < v.size; i+ //v.size(Ogives // v[i] gives v[i] '' cout << << ''; cout << endl; cout << v.front) << "" << v.at (2) <<"" << V.back) << endl; // v.front) gives /I v.at (2) gives /I v.back) gives

Answer 1

Here is the completed code for this problem included comments wherever needed. Go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

#include<vector>

#include<iostream>

using namespace std;

int main(){

                vector<double> v; //creating a vector of double values

               

                v.assign(8,16.3); //initializing vector with 8 elements having value 16.3 into the vector

                v[2]=16.4; v[3]=20.6; //changing element at index 2 to 16.4 and element at index 3 to 20.6

                v.push_back(17.8); //adding 17.8 to the end of vector

                v.push_back(-7.3); //adding -7.3 to the end of vector

                for(int i=0;i<v.size();i++){ //v.size() gives the number of elements currently on vector

                                cout<<v[i]<<" "; //v[i] returns the element at index i on vector

                }

                cout<<endl;

                cout<<v.front()<<" "<<v.at(2)<<" "<<v.back()<<endl;

                // v.front gives the first element on vector

                //v.at(2) is similar to v[2] returning element at index 2

                //v.back() returns the rear element on vector

                return 0;

               

}

/*OUTPUT*/

16.3 16.3 16.4 20.6 16.3 16.3 16.3 16.3 17.8 -7.3

16.3 16.4 -7.3