Compression Data Communication

This program implements Compression. This is a part of Mumbai University MCA Colleges Data Communication and Networking MCA Sem 4 

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

            int i,j,k,tmp,tmp2;

            int datalen,ctr=0;

            char data[100],encr[100];

            clrscr();

            printf("Enter data : ");

            gets(data);

            printf("\n\nData : ");

            printf("\n%s\n",data);

            printf("\n\nCompressed Data : \n");

            for(i=0;data[i]!='\0';)

            {

                        if(ctr==0)

                        {

                                    tmp=data[i];

                                    ctr++;

                                    i++;

                        }

                        else

                        {

                                    while(tmp==data[i])

                                    {

                                                ctr++;

                                                i++;

                                    }

                                    if(ctr>=4)

                                    {

                                                k=ctr/10;

                                                j=ctr%10;

                                                printf("* %c %d %d",tmp,k,j);

                                                ctr=0;

                                    }

                                    else

                                    {

                                                k=i;

                                                j=i-ctr;

                                                do

                                                {

                                                printf("%c ",data[j]);

                                                j++;

                                                } while(j<k);

                                                tmp2=ctr;

                                                ctr=0;

                                    }

                                    tmp=0;

                        }

            }

            getch();

}

Hope this Program is useful to you in some sense or other. Keep on following this blog for more Mumbai University MCA College Programs. Happy Programming and Studying.