Write a c program to check whether a number is prime or not. In this tutorial, we are going to write a c program to check whether an input number is prime or not.
Given an integer, Write an efficient c code to check whether a number is prime or not.
Write a c program to print prime numbers from 1 to N (where n is an integer). This question can also be asked like, print prime numbers from 1 to 100 in c. In this tutorial, we are going to use sieve algorithm to print prime numbers from 1 to N.
Suppose the value of N is 10, So the prime numbers between 1 to 10 is 2, 3, 5, 7.
Now, Let’s learn how to print prime numbers from to 1 to N using Sieve of Eratosthenes. Before solving this program, let’s understand what is a prime number.
Write a query to find second highest salary inMySql . This question is mostly asked in an interviews and it’s also a bit tricky. In this tutorial, We are going to learn three easiest ways to write a MySql query to find second highest salary.
Write a c program to print triangle pattern of numbers and stars (*). In this tutorial, we are going to write a c code to print triangle pattern of numbers , stars (*) .
MCQ on Recursion
Recursion is the most important concept in computer science. In this tutorial, You’ll find practice questions related to recursion.
Recursion video tutorials
In my previous posts, i have written about binary search implementation using recursion and difference between recursion and iteration.
These MCQ helps you to understand the concept of Recursion.
1) Which Data Structure is used to perform Recursion?
c) Linked List
Find Pair of Elements in an Array whose Sum is Equal to given number. Given an array of n integers and a number x, We have to write a code to find a pair of elements(a,b) in an array whose sum is equal to a given number x.
Write a C program to count number of words in a string. Given an input string, we have to write a code to count number of words in a string. The words in a string are separated by space(‘ ‘).
MySql is one of the most used open-source database. In this article, i try to cover some of the most asked mysql interview questions.
Write a c program to swap two numbers without using third variable. Given two input numbers, We have to write a code to swap two numbers without using third variable. In my previous post, I have explained a c program to swap two numbers using third variable. This question is generally asked in an interview.
Programming questions on linked list
Swap two numbers using Bitwise XOR Operator