delete a word from a sentence

#include<stdio.h>
#include<conio.h>
#include<iostream.h>
#include<string.h>
 char a[100] , b[10],c[10];
void main()
{
 clrscr();


 cout<<"please enter a string : ";
 gets(a);
 cout<<"please enter a word to delete : ";
 gets(b);
 for(int i = 0 ; i<strlen(a);i++)
 {
  for(int j = 0 ; a[i]!=' ' && a[i]!='\0' ; i++,j++)
   c[j] = a[i];
   c[j] ='\0';
   if(strcmp(c,b)==0)
    for(int h = 0 ;h<=strlen(b) ;h++)
     a[i-h] = '\n';
 }
 cout<<endl<<"the new sentence is : ";
 for(int u = 0;u<strlen(a);u++)
  if(a[u] != '\n')
   cout<<a[u];
   getch();
}