For example if aabbabc is given as input after first iteration, it should be ababc and after that it should become abc. if aabbcabc is given it should give abcabc after first interation, no change in second iteration and abc after third iteration.
#include
#include
using namespace std;
      
int strcomp(char *p,int i,int j,int  k)
{
         int loop;
         for(loop=0;loop          {
           if(p[loop+i]!=p[loop+j])
             return 0;
         }
         return 1;
}
void strcopy(char *p,int r,int k,int  j)
{
         int loop;
         for(loop=0;loop          {
           p[r++]=p[j++];
         }
         return;
}
void recremove(char *p,int k)
{
         int n=strlen(p);
         int i,j,r;
         if(k>n/2)
           return;
         i=0;j=k;r=k;
         while(i+2*k<=n)
         {
           if(!strcomp(p,i,j,k))
           {
             strcopy(p,r,k,j);
             r++;
             i++;
             j++;
           }
           else
           {
             i=i+k;
             j=i+k;
           }
         }
         while(j            p[r++]=p[j++];
 
 
         p[r]=’\0?;
         if(k==1)
           cout<<”\nString after first iteration is=”<<(char *)p;
         else if(k==2)
           cout<<”\nString after second iteration is=”<<(char *)p;
         else if(k==3)
           cout<<”\nString after third  iteration is=”<<(char *)p;
         else
           cout<<”\nString after “<          k=k+1;
         recremove(p,k);
}
      

int main()
{
         char p[100];
         cout<<”\nEnter the string=”;
         cin.getline(p, 100);
         recremove(p,1);
         return 0;
}