Program To Remove Repeated Words In a String - My CS Tutorial

C program to remove repeated words in a string or statement.
In this tutorial we will discuss that how to write a simple c program that print a string or statement after removing the repeated words in a string or statement.

In the first we will enter a string or statement in which we will use some repeated words in that string like:-

Hello friends hey friends

After removing repeated words string is:- Hello friends hey

C program code

#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
    int i=0,j=0,k=0,a,minIndex=0,maxIndex=0,max=0,min=0;
    char str1[100]={0},substr[100][100]={0},c;
    clrscr();
 
    printf("\n ENTER A STRING OR SENTENCE:\n ");
    gets(str1);
    while(str1[k]!='\0')
    {
        j=0;
        while(str1[k]!=' '&&str1[k]!='\0')
        {
            substr[i][j]=str1[k];
            k++;
            j++;
        }
        substr[i][j]='\0';
        i++;
        if(str1[k]!='\0')
        {
            k++;
        }
    }
    int len=i;
 
    for(i=0;i<len;i++)
    {
      for(j=i+1;j<len;)
       {
         if(strcmp(substr[i],substr[j])==0)
          {
             for(k=j;k<len;k++)
              {
                strcpy(substr[k],substr[k+1]);
              }
                len--;
           }
          else
           {
             j++;
           }
        }
     }
   
      printf("\n AFTER REMOVING REPEATED WORDS IN THIS STRING,THE STRING IS:\n ");
     
 for(i=0;i<len;i++)
 {

  printf("%s ",substr[i]);
 }
 printf("\n");

 getch();

}

OUTPUT:

In this program we will enter a string in which we will use repeated words then it remove the repeated words in that string or statement.

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Created by-- HARSH CHAUHAN