//Header Files
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<stdbool.h>

/* only used in string related operations */
typedef struct String string;
struct String
{
    char *str;
};

char *input(FILE *fp, int size, int has_space)
{
    int actual_size = 0;
    char str = (char) *malloc(sizeof(char)(size+actual_size));
    char ch;
    if(has_space == 1)
    {
        while(EOF != (ch=fgetc(fp)) && ch != '\n')
        {
            str[actual_size] = ch;
            actual_size++;
            if(actual_size >= size)
            {
                str = realloc(str,sizeof(char)*actual_size);
            }
        }
    }
    else
    {
        while(EOF != (ch=fgetc(fp)) && ch != '\n' && ch != ' ')
        {
            str[actual_size] = ch;
            actual_size++;
            if(actual_size >= size)
            {
                str = realloc(str,sizeof(char)*actual_size);
            }
        }
    }
    actual_size++;
    str = realloc(str,sizeof(char)*actual_size);
    str[actual_size-1] = '\0';
    return str;
}
/* only used in string related operations */

typedef struct array_single_int array_single_int;
struct array_single_int
{
    int *data;
    int size;
};


/*
 * 
 */
array_single_int  funcSort(array_single_int inputList, int num)
{
    array_single_int  answer;
    // Write your code here


    return answer;
}

int main()
{
    array_single_int inputList;
    int num;
    
    //input for inputList
    scanf("%d", &inputList.size);
    inputList.data = (int) *malloc(sizeof(int) * inputList.size);
    for ( int idx = 0; idx < inputList.size; idx++ )
    {
        scanf("%d", &inputList.data[idx]);
    }
    
    //input for num
    scanf("%d", &num);
    
    
    array_single_int result = funcSort(inputList, num);
    for(int idx = 0; idx < result.size - 1; idx++)
    {
        printf("%d ", result.data[idx]);
    }
    printf("%d", result.data[result.size - 1]);
    
    
    return 0;
}

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
}