We can find the smallest and second smallest element of an integers array using the c language. This question is also important and asks by the interviewer in an interview. Let’s take an example, suppose there are an integer array iaData of 5 integers. int iaData[5] = {3, 5, 123,…
In this article, I am writing a c code to generate the map of INDIA. This program is an example of obfuscated code in C language. Here we will take an encoded long string. The long string is simply a binary sequence of characters. Here string is a run-length encoding…
In the interview generally, Interviewer asked the question to reverse a string without the using the c library function or maybe they can mention more condition, it totally depends on the interviewer. In this article, I will discuss several techniques to reverse a string. I hope you guys like it….
In the interview generally, bit reversal is the common question for the interviewer. There are several methods to reverse the bits of an integer. If you have good knowledge of unary operators then bit reversal is a very simple question for you otherwise, it can be difficult. So it is…
In this blog post, I will teach you how to write C/C++ program to check if two integers have opposite signs or not. After reading this post you able to check whether given two integers have opposite signs or not. But before writing the C program to how to check…
Previously we have read how to find prime number using C code, here we will learn how to find the all prime number up to n. A prime number is a positive natural number, whose value greater than 1 and it has only two factors 1 and the number itself….
Do you know you can use a function pointer in the structure? I assume your answer is “YES” but however if your answer is “NO”, then it is my recommendation that you should read the article “How to use the structure of function pointer in C?” In this blog post,…
A prime number is a positive natural number, whose value greater than 1 and it has only two factors 1 and the number itself. Either you can say that prime numbers only divided by itself and 1. Any positive natural number who is not a prime number is called a composite…
The volatile keyword is a qualifier it has a lot of importance in the programming language but problem is that many programmers are not aware of how to use the volatile keyword and when need to qualify a variable from the volatile keyword. Most of the textbooks don’t give importance…
Factorial is used in many areas of mathematics but mainly used in permutation and combination. Factorial is the product of the all positive number from 1 to n (user entered number). In simple words, we can say that factorial of n would be 1*2*3*…..*n. Note: There is no factorial exist…