Question

Write an interactive program in c++ that allows the user to enter 2-15 vectors (use the if statement). Display the resultant on the screen.

Answer 1

Code

#include 
#include 

using namespace std;

//to print
void display(const vector>& V) {
    for (auto & i : V) {
        for (int j : i) {
            cout << j << " ";
        }
        cout << "\n";
    }
}

int main() {
    //to store vectors
    vector> V;
    int value ;
    // to enter the number of vectors user wants
    cout<<"Enter the number of vector you want to add between 2-15";
    cin >> value;
    int i = 0;
    // to store the value in each vector 
    while (i < value && value >= 2 && value <= 15 ) {
        vector v;
        string val;
        cout << "Press null to stop entering integers in current vectors" << "\n";
        cin >> val;
        // when to stop storing value in particular vector
        do {
            v.push_back(stoi(val));
            cin >> val;
        } while (val != "null");
        V.push_back(v);
        i++;

    }
    // printing result
    display(V);
    return 0;
}

Output