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G-Fact 19 (Logical and Bitwise Not Operators on Boolean)

Last updated: 13 March 2023

Most of the languages including C, C++, Java and Python provide the boolean type that can be either set to False or True.Consider below programs that use Logical Not (or ! ...read more

GFacts

Python

G-Fact 18 | Finding nth Fibonacci Number using Golden Ratio

Last updated: 12 February 2018

We have discussed different methods to find nth Fibonacci Number. Following is another mathematically correct way to find the same.nth Fibonacci Number :[TEX]F(n) = \left ...read more

GFacts

Fibonacci

fseek() vs rewind() in C

Last updated: 28 June 2023

fseek() and rewind() both functions are used to file positioning defined in stdio.h header file. In this article, we will discuss the differences in the usage and behavior ...read more

Last updated: 15 October 2012

Atomic OperationWhat is an atomic operation? An idea of atomic operation helps in understanding reentrancy, critical section, thread safety, synchronization primitives, et ...read more

GFacts

G-Fact 11

Last updated: 31 July 2018

Following relationship holds in any n-ary tree in which every node has either 0 or n children.L = (n-1)*I + 1 Where L is the number of leaf nodes and I is the number of in ...read more

GFacts

What is evaluation order of function parameters in C?

Last updated: 28 May 2017

It is compiler dependent in C. It is never safe to depend on the order of evaluation of side effects. For example, a function call like below may very well behave differen ...read more

GFacts

C Language

C-Functions

How are variables scoped in C - Static or Dynamic?

Last updated: 12 April 2023

In C, variables are always statically (or lexically) scoped i.e., binding of a variable can be determined by program text and is independent of the run-time function call ...read more

GFacts

C Language

C-Variable Declaration and Scope

What are the Operators that Can be and Cannot be Overloaded in C++?

Last updated: 27 May 2022

There are various ways to overload Operators in C++ by implementing any of the following types of functions:1) Member Function2) Non-Member Function3) Friend FunctionList ...read more

What is return type of getchar(), fgetc() and getc() ?

Last updated: 28 May 2017

In C, return type of getchar(), fgetc() and getc() is int (not char). So it is recommended to assign the returned values of these functions to an integer type variable. [ ...read more

GFacts

C Language

C-Input and Output Quiz

Return values of printf() and scanf() in C/C++

Last updated: 29 November 2020

What values do the printf() and scanf() functions return ?printf() : It returns total number of Characters Printed, Or negative value if an output error or an encoding err ...read more

GFacts

cpp-input-output

C Language

C-Input and Output Quiz

Operands for sizeof operator

Last updated: 04 May 2020

The sizeof operator is used to return the size of its operand, in bytes. This operator always precedes its operand. The operand either may be a data-type or an expression. ...read more

What all is inherited from parent class in C++?

Last updated: 05 September 2023

Following are the things that a derived class inherits from its parent:All the public and protected data members and member functions of the base class. Private members ar...read more

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