CodeClub, SMVDU

Sometimes it is the people no one can imagine anything of who do the things no one can imagine. - Alan Turing

Hello World!

#include<stdio.h>

void main(){
    printf("Hello World!");
}

What is printf?

Its a function to print output.

What is function?

Functions

A function is a group of statements that together perform a task.

#include<stdio.h>

It imports the stdio.h header file from library.

stdio.h header file

A file in C library that contains functions related to standard input and output.

void main()

main() function is the entry point of a C program from where the execution begins.

The curly braces {...}

They represent the start and end point, i.e. the scope of the lines written inside them.

Questions

Lets add two numbers

#include<stdio.h>

void main(){
    int a,b,c;
    a = 4;
    b = 7;
    c = a+b;
}

Datatypes

The data storage format that a variable can store a data to perform a specific operation.

Some of the datatypes commonly used

  • int
  • long
  • float
  • double
  • char
  • string
  • boolean

Variables

Variables are simply names used to refer to some location in memory – a location that holds a value with which we are working.

Arithmetic Operators

The operators which perform some arithmetic operations like adding, subtracting, multiplying etc.

deck

By Pulkit Goyal

deck

  • 743