Sunday, 2 April 2017

Separating the even and odd elements in an array using arrays in C programming(c programming examples)(c program examples)

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The program is as follows:

#include <stdio.h>
#define MAX_SIZE 1000
main()
{
int i,j=0,m=0,n,k=0,l=0,arr[MAX_SIZE],even[MAX_SIZE],odd[MAX_SIZE];
 printf("enter the size of the array:\n");
 scanf("%d",&n);
 printf("enter the elements into the array:\n");
 for(i=0;i<n;i++)
  scanf("%d",&arr[i]);
 for(i=0;i<n;i++)
 {
  if(arr[i]%2==0)
   k++;
  else
   l++;
 }
 for(i=0;i<n;i++)
 {
  if(arr[i]%2==0)
  {
   even[j]=arr[i];
   j++;
  }
  else 
  {
   odd[m]=arr[i];
   m++;
  }
 }
 printf("the even elements in the array are:\n");
 for(i=0;i<k;i++)
  printf("%d\t",even[i] );
 printf("\n");
 printf("the odd elements in the array are:\n");
 for(i=0;i<l;i++)
  printf("%d\t",odd[i] );
return 0;
}


The output is as follows:



This is an example in C which is written on the base of using arrays and loops. The output should be in two categories. One category prints the even numbers and the other category should print the odd numbers. We know that when an even number is divided by 2 the remainder we get is '0'. If the number is odd the remainder we get is '1'. By this logic the program is writtern.


#include <stdio.h>
The '#include' is a preprocessor directive which includes the source files inside the code. The 'stdio.h' is a standard input and output header file with several functions written in it. The functions like 'printf()''gets()' and 'scanf()' are work when we include 'stdio.h' header file. 

#define MAX_SIZE 1000

'#define' is also a preprocessor directive which declares the universal variables. In the above line "MAX_SIZE" is the universal variable. We assigned the universal variable with 1000. Throughout the program, it'll remain same. No changes will occur to it.

int i,j=0,m=0,n,k=0,l=0,arr[MAX_SIZE],even[MAX_SIZE],odd[MAX_SIZE];

The data type 'int' is used to declare variables in which the integer data is stored. The vairables declared are 'i', 'j', 'm', 'n', 'k', 'l'. The two arrays we declared are 'arr[]', 'even[]' and 'odd[]'. These variables are used in the program for particular operations. The variables 'i' and 'j' are used in the iteration of the loops. The variable 'n' used to declare the size of the main array. The variables 'm' and 'k' are used to know the number of even and odd elements in the array.

printf("enter the size of the array:\n");
 scanf("%d",&n);

The function 'printf()' is used to print the message "enter the size of the array". When you give a number then it assigns it to the variable 'n'.

 printf("enter the elements into the array:\n");
 for(i=0;i<n;i++)
  scanf("%d",&arr[i]);

After then the function 'printf()' prints the message "enter the elements into the array". After entering the elements the loop assigns each element into compartments of the array.

 for(i=0;i<n;i++)
 {
  if(arr[i]%2==0)
   k++;
  else
   l++;
 }

C is a general-purpose programming language. It has been closely associated with the UNIX system where is was developed, since both the system and most of the programs that run on it are written in C. The language, however, is not tied to any one operating system or machine; and although it has been called a “system programming language” because it is useful for writing compilers and operating systems, it has been used equally well to write major programs in many different domains.(c programming examples)(c program examples)
Many of the important ideas of C stem from the language BCPL, developed by Martin Richards. The influence of BCPL on C proceeded indirectly through the language B, which was written by Ken Thompson in 1970 for the first UNIX system on the DEC PDP-7.(c programming examples)
BCPL and B are “typeless” languages. By contrast, C provides a variety of data types. The fundamental types are characters, and integers and floating point numbers of several sizes. In addition, there is a hierarchy of derived data types created with pointers, arrays, structures, and unions. Expressions are formed from operators and operands; any expression, including an assignment or a function call, can be a statement. Pointers provide for machine-independent address arithmetic.(c programming examples)(c program examples)
C provides the fundamental control-flow constructions required for well-structured programs: statement grouping, decision making (if-else), selecting one of a set of possible cases (switch), looping with the termination test at the top (while, for) or at the bottom (do), and early loop exit (break).(c programming examples)(c program examples)
Functions may return values of basic types, structures, unions, or pointers. Any function may be called recursively. Local variables are typically “automatic,” or created anew with each invocation. Function definitions may not be nested but variables may be declared in a block-structured fashion. The functions of a C program may exist I separate source files that are compiled separately. Variables may be internal to a function, external but know only within a single source file, or visible to the entire program.(c programming examples)(c program examples)
A preprocessing step performs macro substitution on program text, inclusion of other source files, conditional compilation.(c programming examples)(c program examples)
C  is a relatively “low level” language. This characterization is not pejorative; it simply means that C deals with the same sort of object that most computers do, namely characters, numbers, and addresses. These may be combined and moved about with the arithmetic and logical operators implemented by real machines.(c programming examples)(c program examples)
C provides no operations to deal directly with composite objects such as character strings, sets, lists, or arrays. There are no operations that manipulate an entire array or string, although structures may be copied as a unit. The language does not define any storage allocation facility other than static definition and the stack discipline provided by the local variables of functions; there is n heap or garbage collection. Finally, C itself provides no input/output facilities; there are no READ or WRITE statements, and no built-in file access methods. All of these higher-level mechanisms must be provided by explicitly called functions. Most C implementations have included a reasonably standard collection of such functions.(c programming examples)(c program examples)


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