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Interview 1 min read

20 General Technical Interview Questions for Experienced Developers

1. What is the most challenging task you've ever done? 2. What is your favorite project you've ever done? 3. What are some things

Primary 4 min read

TextView and EditText in Android

1. How to use simple TextView in android Write this code in .xml file <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:

Primary 3 min read

Awesome Bitwise Operations and Tricks with Examples

1. Set nth bit of integer x x | (1<<n) Example #include<stdio.h> int main() { int x = 10; //1010 int n = 2; int

Primary 2 min read

How to pass Command Line Arguments in Turbo C++

The following are the steps to execute a program with Command Line Argument inside Turbo C/C++ Compiler : 1. Open Turbo C++ Open Turbo C++. If you don&

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What is Dangling Pointer with Cause and How to avoid it?

Dangling pointers in computer programming are pointers that pointing to a memory location that has been deleted (or freed). Dangling pointers arise during object destruction, when an object

Primary 8 min read

Big-O Notation Explained with Examples

Asymptotic notation is a set of languages that allow us to express the performance of our algorithms in relation to their input. Big O notation is used in

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What is the difference between const int * and int const *?

One simple answer - read it backwards (as driven by Clockwise/Spiral Rule). * int * ptr - ptr is a pointer to int * int const * ptr - ptr is a pointer to

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Why does the indexing of Array start with Zero in C?

Martin Richards, creator of the BCPL language (a precursor of C), designed arrays initiating at 0 as the natural position to start accessing the array contents in the

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Mathematics and number based challenges

The programming ideas/challenges featured here can be programmed in popular programming languages like C, C++, C#, Java, Go, Python, Ruby, JavaScript and PHP for either the Web,

Primary 3 min read

Memory Layout / Representation of C Program

Memory layout / representation of C program is organized in following fashion - 1. Text or Code segment 2. Initialized data segment 3. Uninitialized data segment 4. Stack 5. Heap

Primary 1 min read

What is Digraphs, Trigraphs and Tokens? - C/C++ Programming Language

In computer programming, digraphs and trigraphs are sequences of two and three characters, respectively, that appear in source code and, according to a programming language specification, should be

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Storage Classes in C Programming Language

Storage class specifiers are the keywords which can appear next to the top-level type of a declaration. The use of these keywords affects the storage duration and

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An Untold Story of Storage Class in C Programming Language

Storage class specifiers are the keywords which can appear next to the top-level type of a declaration. The use of these keywords affects the storage duration and

Primary 3 min read

Simple and Static Assertion (assert) in C Programming Language

An assertion is a statement used to assert that a fact must be true when that line of code is reached. Assertions are useful for ensuring that expected

Primary 6 min read

11 Most Common Pitfalls in C Programming Language

1. Mixing signed and unsigned integers in arithmetic operations It is usually not a good idea to mix signed and unsigned integers in arithmetic operations. For example, what