QBurst Interview Questions

What Kinds of Questions are Asked During a QBurst Interview?

The technical round of QBurst interviews consists the questions from the following categories:

1. Object Oriented Concepts
    
2. API Testing
    
3. SQL
    
4. Core Java
    
5. Non functional testing
    
6. Memory Management
    

Below mentioned are some of the QBurst coding questions asked during the assessment as well as in an interview.

Basic-level QBurst Coding Questions

1. Given a string of numbers, write a program to find the Lucky Winner in the QBurst Lucky Draw contest. The person is lucky if he gets the lucky number, i.e., if the sum of the last two digits of the number is 3 or 8, print “Lucky Draw Winner”, else print “not a Lucky Draw Winner”.
 

#include<bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cout<<"\n Enter Number:";
    cin >> s;

    int sum = (s[s.size() - 1] - '0') + (s[s.size() - 2] - '0');

    if (sum == 3 || sum == 8)
        cout << "\n Lucky Draw Winner";
    else
        cout << "\n Not a Lucky Draw Winner";

}

You can also try this code with Online C++ Compiler

Run Code

Output:

Intermediate-level QBurst Coding Interview Questions

2. Write a program to find the center element in the array after sorting. Print the center element if the size of the array is odd, else print the average of the two middle elements.
 

#include<bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cout<<"\n Enter the size of array:";
    cin >> n;

    int a[n];
    cout<<"\n Enter array elements:";
    for (auto & x: a)
        cin >> x;

    sort(a, a + n);
    int ans;

    if (n % 2)
        ans = a[n / 2];
    else
        ans = (a[n / 2 - 1] + a[n / 2 - 1]) / 2;

    cout << "\n Center Element is:"<< ans << endl;
}

You can also try this code with Online C++ Compiler

Run Code

Output:

Advanced-level QBurst Coding Questions

3. Check whether the given password is Valid or not. Given that a string of passwords must follow the given conditions:

• The length of the String is at least 8 characters
   
• It Should Start with a Capital Letter
   
• It should have at least one Numeric Value (0-9)
   
• It Should have at one Special Character from the list [@$%&]
   

Print true if all the conditions are true, else print false.

#include<bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cout<<"\n Enter Password:";
    cin >> s;

    int valid = 1;

    if (s.size() < 8)
        valid = 0;
    if (!(s[0] <= 'Z' && s[0] >= 'A'))
        valid = 0;

    int num = 0, symbol = 0;

    for (auto x: s) {
        if (x <= '9' && x >= '0')
            num = 1;
        if (x == '@' || x == '$' || x == '%' || x == '&')
            symbol = 1;
    }

    if (num == 0 || symbol == 0)
        valid = 0;

    if (valid)
        cout << "\n True";
    else
        cout << "\n False";
}

You can also try this code with Online C++ Compiler

Run Code

Output:

4. Given a string s, perform the following operations and return the modified string.

• First, we need to reverse each individual word in the given String.
   
• In step 2, we need to replace Even index Characters with Uppercase & Odd index Characters with Lowercase.
   
• In step 3, we need to replace the Even index space with #, and the Odd index space with *
   
• In step 4, any other characters in the Even index we need to replace with @ and any other Characters in Odd Index are replaced with :
   

#include<bits/stdc++.h>
using namespace std;

int main() 
{
    string s;
    cout<<"\n Enter String:";
    getline(cin, s);
    string t = "";

    // step 1;
    stack < char > st;
    for (int i = 0; i < s.size(); i++) {
        if (s[i] != ' ')
            st.push(s[i]);
        else {
            while (st.size() > 0) {
                t += st.top();
                st.pop();
            }
            t += ' ';
        }
    }
    while (st.size() > 0) {
        t += st.top();
        st.pop();
    }

    // step 2, 3, 4;
    for (int i = 0; i < t.size(); i++) {
        if (i % 2 == 1) {
            if (t[i] <= 'Z' && t[i] >= 'A')
                t[i] = (t[i] - 'A' + 'a');
            else if (t[i] == ' ')
                t[i] = '*';
            else if (!(t[i] <= 'z' && t[i] >= 'a'))
                t[i] = ':';
        } else {
            if (t[i] <= 'z' && t[i] >= 'a')
                t[i] = (t[i] - 'a' + 'A');
            else if (t[i] == ' ')
                t[i] = '#';
            else if (!(t[i] <= 'Z' && t[i] >= 'A'))
                t[i] = '@';
        }
    }
    cout<<"\n Modified String:";
    cout << t;
    cout<<endl;
}

You can also try this code with Online C++ Compiler

Run Code

Output:

Must Read Web Developer Interview Questions

Conclusion

In this article, we have gone through what QBurst is, whether it is easy to crack QBurst coding questions, and then level-wise QBurst coding questions are explained with their code.

You can refer to our guided paths on Coding Ninjas Code360 to learn more about DSA, Competitive Programming, JavaScript, System Design, etc. Enrol in our courses and refer to the mock test and problems available. Take a look at the interview experiences and interview bundle for placement preparations.
Check out this problem - Subarray Sum Divisible By K

You can also check out these articles on interview questions:

• Managerial Round Interview Questions
• Html interview questions
• SQL Query Interview Questions
• MySQL Interview Questions
• MongoDB Interview Questions
• Excel Interview Questions
• Pyspark Interview Questions
• MVC Interview Questions
• Selenium Interview Questions
• asp net mvc interview questions
• Spring boot interview questions
• Embedded Interview Questions

Happy Learning!