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C Instructions


                            C Instructions 


C Instructions

There are basically four types of instructions in C:

(a)    Type Declaration Instruction
(b)    Input/Output Instruction
(c)    Arithmetic Instruction
(d)    Control Instruction

(a)    Type Declaration Instruction
This instruction is used to declare the type of variables being used in the program.

Ex.-    int bas;
    Float rs,grosssal;
    Char name,code;

(b)    Input/Output Instruction

To perform the function of supplying input data to a program and obtaining the output results from it.


Printf ()          Output

Scanf()           Input

 

(c )   Arithmetic Instruction

        To perfome arithmetic operations between constants and variables. +   -   *   /  % etc.

(d) Control Instruction


To Control the sequence of execution of various statement in a C program

Operators
They are used to perform various operations on the variables.
•    Arithmetical operators (+ ,- ,* ,/ ,%)
•    Relational operators (>,<,<=,>=,= =,!=)
•    Logical operators (||, &&,!)
•    Increment / Decrement operators (++,--)
•    Assignment operator (=) 

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