CHARCTEREXTRACTOR

     INPUT          : STRING-> Battle of the Vowels:Hawaii

                         REMOVE-> AEIOU

OUTPUT         : BTTL F TH VWLS:HW

POSTER          : Santosh

Solutions:

BY EZHILMANI

#include

#include

int RemoveChars(char *str, char *Substring)

{

     

      char *startaddr=NULL;// Pointer which has  the starting address 4 reference

      char *indexidentifyptr=NULL;// ptr vch identifies index 4 searching subchar

      startaddr =str;        // initializing with starting address

     

      if(*Substring!=NULL)

      {

            while(*Substring!='\0')    // condition to check for end of substring

            {

                  str=startaddr;

                  while(*str!='\0')     //  condition to check for end of string

                  {

                        if(*str == *Substring) // comparing string and substring

                        {    

                              indexidentifyptr = str; // storing the address for refernce so for next time the string is searched from this point

                              for(;*str!='\0';str++)  // for adjusting the position of cahracter in the string

                                    *str=*(str+1);

                              *(str-1)='\0';  // placing null at the end of string

                              str =indexidentifyptr;

                              indexidentifyptr =0;

                        }

                        else

                              str++;   // if not matched just increment the adress

                  }

                  Substring++;           

            }

            printf("%s%s",startaddr,Substring);

      }

      else

      {

            printf("substring not present");

            return -1;

      }

            return 0;

}

int main()

{

      char str[]={"Battle of the Vowels:Hawaii"};

      char Substring[]={"aeiou"};

      if(RemoveChars(str,Substring)== -1)

            printf("enter substring\n");

      return 0;

}

BY AVINASH:

#include"stdio.h"

#include "string"

bool MyStrExtractor(char *,char*);

int main()

{

       char *pszInput,*pszExtractChar;

       pszInput       = (char *)malloc(30);

       pszExtractChar = (char *)malloc(10);

       memset(pszExtractChar,0X00,10);

       memset(pszInput,0X00,30);                       

       printf("Enter the String:");

       fgets(pszInput, 30, stdin); //MY NAME IS KHAN      

       printf("\nEnter the Extractor variables:");

       fgets(pszExtractChar, 10,stdin);//AEIK

       if(true != MyStrExtractor(pszInput,pszExtractChar))

              printf("\n MYSTREXTRACTOR FAILED");

       else

             printf("\n%s",pszInput);

       free(pszInput);

       free(pszExtractChar);

       return 0;

}

bool MyStrExtractor(char *pszIn,char *pszExtract)

{     

       char *pszTempExtract = pszExtract;

       char *pszTempIn = pszIn;

       while(NULL != *pszIn )//practicing  this way to avoid mistake of EQUAL '=' instead of '=='(as null is a constant it cannot be assigned and generates a error)

       {

             while(NULL != *(pszTempExtract+1))

             {

                    if(*pszTempExtract == *pszIn)

                    {

                           pszTempIn = pszIn;

                           while(NULL != *(pszTempIn+1))//Afterextracting the char shifting entire chars to overwrite the other chars

                           {

                                 *pszTempIn = *(pszTempIn+1);

                                 pszTempIn++;

                           }

                           *(pszTempIn+1)='\0';

                           pszIn--;

                           break;

                    }

                   

                    pszTempExtract++;

             }

             pszTempExtract = pszExtract;

             pszIn++;

       }

       return true;

} BY SANTOSH:

#include "stdafx.h"

#include

#include

#include "string"

char * RemoveChar(char *,char *);

int _tmain(int argc, _TCHAR* argv[])

{

       char *pSrc,*pDest,*pRef;

       int inpStrLen1,inpStrLen2;

       pDest = NULL;

       printf("Enter the approx Input String Length\n");                                                             //Enter your approx string lengths so tat u can allocate

       scanf("%d",&inpStrLen1);                                                                                                   //memory excatly required

       pSrc = (char *)malloc(inpStrLen1*sizeof(char));

       memset(pSrc,0X00,inpStrLen1);

       printf("Enter the approx Removal Character Set String Length\n");                              

       scanf("%d",&inpStrLen2);

       pRef = (char *)malloc(inpStrLen2*sizeof(char));

       memset(pRef,0x00,inpStrLen2);

       fflush(stdin);

       printf("Enter the Input String:\n");                                                                                 //Enter the source string and string that has to be compared.

       fgets(pSrc,inpStrLen1,stdin);

       fflush(stdin);

       printf("Enter the Referenc String:\n");

       fgets(pRef,inpStrLen2,stdin);

       pDest = RemoveChar(pSrc,pRef);                                                                                       //Calling the for extraction which return pointer to extracted

                                                                                                                            //string

       printf("The Extracted String is: %s\n",pDest);

       return 0;

}

char * RemoveChar(char *pInput,char *pCharSet)

{

       int inCnt,outCnt,loopCnt1,loopCnt2;

       char *pOutput;

       bool status = FALSE;

       inCnt = outCnt = loopCnt1 = loopCnt2 =0;

       for(loopCnt1 = 0;*(pInput + loopCnt1) != NULL;loopCnt1++)                                              //Loop for counting extracted characters and

       {                                                                                                      //depending on the count, allocate memory

              for(loopCnt2 = 0;*(pCharSet + loopCnt2) != NULL;loopCnt2++)

              {

                     if(*(pInput + loopCnt1) == *(pCharSet + loopCnt2))

                     {

                           status = TRUE;

                           break;

                     }

              }

              if (!status)

              {

                     outCnt++;

              }

              else

                     status = FALSE;

       }

       pOutput = (char *)malloc(outCnt*sizeof(char));

       memset(pOutput,0x00,outCnt);

       for(loopCnt1 = 0;*(pInput + loopCnt1) != NULL;loopCnt1++)                                                     //Loop for transfering the extracted characters to pOutput

       {

              for(loopCnt2 = 0;*(pCharSet + loopCnt2) != NULL;loopCnt2++)

              {

                     if(*(pInput + loopCnt1) == *(pCharSet + loopCnt2))

                     {

                           status = TRUE;

                           break;

                     }

              }

              if (!status)

              {

                     *(pOutput + inCnt) = *(pInput + loopCnt1);

                     inCnt++;

              }

              else

                     status = FALSE;

       }

       *(pOutput +inCnt) = NULL;

       return pOutput;

}