#include <stdio.h>
#include <string.h> 

int main(){
	
	char password[10];
	char username[10];
	int exit=0;
	int option,option_subscription,back;


	printf("\n\n\n\n\n\t\t\t\t\t         WELCOME TO WATCHFLIX\n");
	
	printf("\n\t1.LOGIN\n");
	printf("\t2.SIGNUP/BUY SUBSCRIPTION\n");
	
	printf("\tSelect Option: ");
	scanf("%d",&option);
	
	switch(option)
	{
		case 1:
	
	printf("\n\n\n\t\t\t\tLOGIN\n");
	
	printf("\t\t\t\tUsername: ");
	scanf("%s",&username);
	
	printf("\t\t\t\tPassword: ");
	scanf("%s",&password);
	

	if(strcmp(username,"shabbir")==0)
	{
		
		
		if(strcmp(password,"12345")==0)
		{
			printf("\t\t\t\tLOGIN SUCCESSFUL");
			printf("\n------------------------------------------------------------------------------------------------------------------------");
	
		}
		
		
			else
			{
				printf("\n\n\t\t\t\t\tINCORRECT PASSWORD");
			}
		
	}
	else
	{
		printf("\t\t\t\t\t\tINCORRECT USERNAME");
	}
	break;
	
	
	
	case 2:
	
	printf("\n\n\n\tSUBSCRIPTIONS\n");
	printf("\t1.200 RS/ A Month\n\t2.1200 RS/ 6 Months\n\t3.2400/ 12 Months\n");
	printf("\n\tSelect Option: ");
	scanf("%d",&option_subscription);
	
	switch(option_subscription)
	{
		case 1:
			printf("\n\tCongrats! Subscription No. %d Is Active",option_subscription);
			
			break;
		case 2:
			printf("\n\tCongrats! Subscription No. %d Is Active",option_subscription);
			
			break;
		case 3:
			printf("\n\tCongrats! Subscription No. %d Is Active",option_subscription);
			
			break;
			
			default:
	printf("PROGRAM HAS BEEN CLOSED. PLEASE START AGAIN TO LOGIN OR AGAIN SIGNUP");
				
	}

default:
	printf("\n\n\t(PROGRAM HAS BEEN CLOSED. PLEASE START AGAIN TO LOGIN OR AGAIN SIGNUP)\n");
		
}




}

C Language online compiler

Write, Run & Share C Language code online using OneCompiler's C online compiler for free. It's one of the robust, feature-rich online compilers for C language, running the latest C version which is C18. Getting started with the OneCompiler's C editor is really simple and pretty fast. The editor shows sample boilerplate code when you choose language as 'C' and start coding!

Read inputs from stdin

OneCompiler's C online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample C program which takes name as input and print your name with hello.

#include <stdio.h>
int main()
{
    char name[50];
    printf("Enter name:");
    scanf("%s", name);
    printf("Hello %s \n" , name );
    return 0;
    
}

About C

C language is one of the most popular general-purpose programming language developed by Dennis Ritchie at Bell laboratories for UNIX operating system. The initial release of C Language was in the year 1972. Most of the desktop operating systems are written in C Language.

Key features:

  • Structured Programming
  • Popular system programming language
  • UNIX, MySQL and Oracle are completely written in C.
  • Supports variety of platforms
  • Efficient and also handle low-level activities.
  • As fast as assembly language and hence used as system development language.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition if-else is used.

if(conditional-expression) {
   // code
} else {
   // code
}

You can also use if-else for nested Ifs and if-else-if ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to if-else-if ladder.

switch(conditional-expression) {    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
...    
    
default:     
 // code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  // code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while(condition) {  
 // code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {
  // code 
} while (condition);

Arrays

Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.

Syntax

One dimentional Array:

data-type array-name[size];

Two dimensional array:

data-type array-name[size][size];

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity.

Two types of functions are present in C

  1. Library Functions:

Library functions are the in-built functions which are declared in header files like printf(),scanf(),puts(),gets() etc.,

  1. User defined functions:

User defined functions are the ones which are written by the programmer based on the requirement.

How to declare a Function

return_type function_name(parameters);

How to call a Function

function_name (parameters)

How to define a Function

return_type function_name(parameters) {  
  //code
}