//Downloaded From theonlinetutorials.com
//Source code
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
void dop(char s[])
 {
 char a[100],b[100];
 a[0]=NULL;
 b[0]=NULL;
 int flag=0,sa=0;
 for(int i=0;i<=strlen(s);i++)
 {
 if(s[i]==' '||s[i]==NULL)
 {
 b[sa]=' ';
 sa++;
 b[sa]=NULL;
 flag=1;
 }
 else
 {
 b[sa]=s[i];
 sa++;
 }
 if(flag==1)
 {
 if(strcmp(a,b)==0)
 {
 for(int j=(i-sa);j<=strlen(s);j++)
 {
 s[j]=s[j+sa];
 }
 i=i-sa;
 }
 flag=0;
 sa=0;
 strcpy(a,b);
 }
 }
 }
int main()
 {
 char s[100];
 cout<<"Enter a String"<<endl;
 gets(s);
 dop(s);
 cout<<"Formated string is"<<endl;
 cout<<s;
 getch();
 return 0;
 }

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Tagged as: C++ Program - Remove duplication of the word, CPP Program - Remove duplication of the word, Remove duplication, Remove duplication of the word, Remove duplication of the word in C++, Remove duplication of the word in CPP, Word duplication removal