The scope rules are related to the following factors −Accessibility of a variables.Period of existence of a variable.Boundary of usage of variables.Scope rules related to statement blocks are given below −Block is enclosed in curly braces which consists of set of statements.Variables declared in a block are accessible and usable ... Read More

An array is a group of related items that store with a common name.SyntaxThe syntax for declaring an array is as follows −datatype array_name [size];Types of arraysArrays are broadly classified into three types. They are as follows −One – dimensional arraysTwo – dimensional arraysMulti – dimensional arraysInitializationAn array can be ... Read More

An array is a group of related items that store with a common name.SyntaxThe syntax is as follows for declaring an array −datatype array_name [size];Types of arraysArrays are broadly classified into three types. They are as follows −One – dimensional arraysTwo – dimensional arraysMulti – dimensional arraysInitializationAn array can be ... Read More

An array is a group of related items that store with a common name.SyntaxThe syntax is as follows for declaring an array −datatype array_name [size];Types of arraysArrays are broadly classified into three types. They are as follows −One – dimensional arraysTwo – dimensional arraysMulti – dimensional arraysOne – dimensional arrayThe ... Read More

An array is a group of related items that store with a common name.SyntaxThe syntax is as follows for declaring an array −datatype array_name [size];InitializationAn array can also be initialized at the time of declaration −int a[5] = { 10, 20, 30, 40, 50};Reversing array in CWe can reverse array ... Read More

First, let us learn how to find Highest Common Factor (HCF).Highest Common Factor (HCF)The greatest number divides each of the two or more numbers is called HCF or Highest Common Factor. It is also called as Greatest Common Measure(GCM) and Greatest Common Divisor(GCD).For example, What is the HCF of 12 ... Read More

Functions are broadly classified into two types, which are as follows −Predefined functionsUser defined functionsPredefined (or) library functionsThese functions are already defined in the system libraries.Programmer will reuse the already present code in the system libraries to write error free code.But to use the library functions, user must be aware ... Read More

ProblemWrite a C program to check the entered password by the user is valid or not based on his/her ID using nested switch case.SolutionThe solution is explained below −In C language, we can write inner switch which is placed in an outer switch.The case values of the inner and outer ... Read More

It is used to select one among multiple decisions. ‘switch’ successively tests a value against a list of integers (or) character constant. When a match is found, the statement (or) statements associated with that value are executed.SyntaxThe syntax is given below −switch (expression){    case value1 : stmt1;     ... Read More

First, let us learn about the logical operator.Logical operatorThese are used to combine 2 (or) more expressions logically.They are logical AND (&&) logical OR ( || ) and logical NOT (!)Logical AND (&&)exp1exp2exp1&&exp2TTTTFFFTFFFFLogical OR(||)exp1exp2exp1||exp2TTTTFTFTTFFFLogical NOT(!)exp!expTTFTOperatorDescriptionExamplea=10, b=20, c=30Output&&logical AND(a>b)&&(a20)&&(10b)||(a20)||(10b)!(10>20)1ExampleFollowing is the C program to compute logical operators − Live Demo#include main (){ ... Read More