These are used for comparing the two expressions.OperatorDescriptionExamplea=10, b=20Output=200==equal toa==b10==200!=not equal toa!=b10!=201Relational expression output is either true (1) (or) false (0).AlgorithmFollow the algorithm given below −START Step 1: Declare integer variables. Step 2: Read all variables at runtime. Step 3: Perform relational operations.    i. a=b    v. a==b   ... Read More

It is used to perform the arithmetic operations like addition, subtraction etc.OperatorDescriptionExamplea=20, b=10Output+Additiona+b20+1030-subtractiona-b20-1010*multiplicationa*b20*10200/Divisiona/b20/102(quotient)%Modular Divisiona%b20%100 (remainder)AlgorithmFollow the algorithm mentioned below −START Step 1: Declare integer variables. Step 2: Read all variables at runtime. Step 3: Perform arithmetic operations.    i. a+b    ii. a-b    iii. a*b    iv. b/a   ... Read More

An expression is a combination of operators and operands which reduces to a single value. An operation is performed on a data item which is called an operand. An operator indicates an operation to be performed on data.For example, z = 3+2*1z = 5Primary expressions − It is an operand ... Read More

A ‘C’ program contains executable statements. A compiler helps to translate the executable statements into machine language.When a user runs the program, he/she machines the language statements which are executed by the compiler.Types of executable statementsThe types of executable statements in C language are as follows −Input – output statementsAssignment ... Read More

"Recursive function" is something which calls itself again in the body of the function.For example, A function fact ( ), which computes the factorial of an integer ‘N’, which is the product of all whole numbers from 1 to N.fact ( ) with an argument of 1 (or) 0, the ... Read More

Let us first understand, what is a variable.VariableIt is the name for memory location that may be used to store a data value.A variable may take different values at different times during execution.A variable name may be chosen by the programmer in a meaningful way, so as to reflect its ... Read More

The link and definition sections are called as preprocessor directives. It gives instructions to the compiler to link function from the system library.For example, the definition section defines all the symbolic constants.#includeFor example, #define PI 3.1415The preprocessor directives must start with # symbol.Without link definition the program will not execute ... Read More

In this program, we are trying to sort out the odd numbers and even numbers that are present in one file. Then, we try to write all odd numbers in ODD file and even numbers into EVEN file.Open a file DATA in write mode and write some numbers into the ... Read More

The pre-processor is a program which process the source code before it passes through compiler. It operates under the control of different command lines or directives.Pre-processor are placed in source program before the main line, it begins with symbol# in column one and do not require a semicolon at the ... Read More

A pointer is a variable whose value is the address of an another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address.Consider the following statement −int qty = 179;The representation of the variable ... Read More