Program to remove all common characters in a string - My CS Tutorial

C program to compare and remove all characters in second string which are present in both strings or that are common alphabets.

In this tutorial we will learn  or discuss that how to write a c program code to remove all alphabets that are common in both strings.

This c program code will compare two strings and remove common letters from second string.

In the first user will enter first and second string through the keyboard then the compiler will compare both strings,r remove common alphabets in string 2 and print the second string(reminder string).

PROGRAM CODE

#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
int x=0,y,z=0,flag=0,len1,len2;
char st1[100],st2[100],temp[100]={0};

clrscr();

printf("\n ENTER FIRST STRING:\n ");
gets(st1);

printf("\n ENTER SECOND STRING:\n ");
gets(st2);

len1=strlen(st1);
len2=strlen(st2);

 for(x=0;x<len2;x++)
 {
   flag=0;
  for(y=0;y<len1;y++)
  {
   if(st2[x]==st1[y])
   {
    flag=1;
   }
  }
  if(flag==0)
  {
   temp[z]=st2[x];
   z++;
  }
 }
 temp[x]='\0';

 printf("\n AFTER REMOVING SAME(COMMON) ALPHABETS FROM STRING 2");

 printf("\n ");

 printf("\n THE SECOND STRING IS:%s\n",temp);

 getch();
}

OUTPUT:

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Created by-- HARSH CHAUHAN