Sum of Sequence
CONCEPTS USED: Collatz conjecture DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a positive number N, write a recursive function and sum all the number until N reaches to 1 after performing...
Pragya and Gold Medalist
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given two strings S1 and S2, print the count of all their Interleaving Strings. NOTE: Interleaving String is a string that has...
Print the Pattern
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a number N, print its decreasing sequence (i.e. keep subtracting by 5) till it reaches (<=0) and then print its increasing...
Min and Max
CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): With a given array of size N, find the largest (maximum) and smallest (minimum) element from the elements. See original problem...
Array Rotation
CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): With a given array of size N and steps K, we have to print the array after K rotations to the...
PERMUSEQ
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a sorted array A containing N distinct elements, your task is to find the Mth permutation of the given array. For...
Minimum characters required to add to given string to make it palindrome
Concepts Used Strings, LPS array KPS Algorithm Difficulty Level Hard Problem Statement (Simplified): Find the minimum number of characters required to add to the given string to make it a...
Pairs
CONCEPTS USED: Hashing DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given M pairs of integers, where each integer is between 1 and N inclusive. Check if there exists two integers x and...
Arrange Ways
Concepts Used: Mathematics Difficulty Level: Medium Problem Statement (Simplified): We have to find in how many ways we can arrange X number of men from M men and Y women...
First Capital Using Recursion
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a String T, find the 1st occurrence of the capital (uppercase) alphabet. Print its index if present, else -1. See original...
Total number of ways to form a team of size K from X men and Y women with at least 4 men and 1 woman in the team
Concepts Used: Mathematics Difficulty Level: Hard Problem Statement (Simplified): In this problem, we have to find a total number of ways to form a team of size K from X...
POWERLEX
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a string, write a recursive code to print all subsets of it. The subsets are to be printed in lexicographical(alphabetic) order....
Mike and Exam
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array containing N elements and an integer K, find the number of ways to calculate the value of K using...
Multiplication of Digits
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an integer N, recursively find the multiplication of digits of N modulus with 10^9+7. See original problem statement here For Example:...
N Digit Sum
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a digit N and an integer Sum, print all the N-digit integers whose digit sum is equal to the given Sum....
N Digit Sum Even Odd
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an integer N, print all N-digit numbers with sum of digits at Even index equal to sum of digits at Odd...
Quadrilateral
CONCEPTS USED: Basic Mathematics, Co-ordinate Geometry DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given 4 coordinate points, check if the given quadrilateral formed from given coordinates forms a Square or not, print...
Saitama’s Punch
CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array A which contains the sorted time points at which a hero named Saitama punches and paralyzes his enemy...
Minimum number of notes
The concept of finding the minimum number of notes refers to a problem often encountered in programming, where the goal is to determine the smallest number of currency notes required...
Benchmates
CONCEPTS USED: Efficient Array Search DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given marks of N students sitting on a bench and a value of K, print the index of the student...
How to Convert an Array into Zigzag Array?
Welcome to the world of array manipulation! If you've ever found yourself pondering over the task of converting a straightforward array into a zigzag array, you're in the right place....
Sliding Window
CONCEPTS USED: Sliding Window Technique DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array A, we need to find two sub-arrays with specific lengths L and R such that sum of...
Top 50 C Programming Interview Questions and Answers
Q1. You know what are Increment and Decrement operators correct? What I want to know is how increment and decrement operators can be constructed using basic mathematical operators? Ans. (First,...
What is a Real-Time Operating System (RTOS)?
A real time operating system is a software system that is designed to manage real time applications. Real time applications require immediate responses to inputs and events, and the real...
What are the Different Types of Inheritance in C++?
Inheritance is one of the most important features of Object Oriented Programming (OOPs), and it plays a critical role in creating flexible and reusable code. Inheritance in C++ is a...
Right questions to ask in an interview
Just like the way the interviewer asks you at the very beginning of the interview to Introduce yourself; in 95% cases, they do also ask this question towards the end...
How to introduce yourself in an Interview?
The highest guaranteed question to come up in an interview regardless of your industry, your job experience, and job type is - Tell me about yourself! You must have handed...
How can a Non-CSE student get placed IT/Software company in 2-3 months?
This blog is of great use for students who are from Non-CSE branch and still have 2-3 months in hand before they appear for their dream company. Even if companies...
How to prepare for an interview?
The best way to practice for an interview is by giving interviews and getting real-time feedback. Tips & techniques to perform well for Online Placement Preparation Program.:Technical Knowledge: Basic technical...