while not done
    check if the string has a space
    if not, then this loop is done
    call substr to extract the word into another std::string object and insert this into a vector of strings.
    call substr again to remove the word from the original string
 end of loop

#include <iostream.h>
#include <conio.h>
#include <string.h>
#include <stdio.h>
struct packet
{
	char idenstr[60];
    int sentno;
	int fragno;
    int total;
	char payload[60];
 
 
}pkt[20];
 
const int max=60;
int main()
{
 
 
struct packet
{
	int fragno;
	char payload[60];
	int sentno;
	int total;
}pkt[20];
 
 
	char str1[max],str2[max],s2[max];
	FILE *f;
		f=fopen("ee.txt","r");
	fgets(str1,max,f);
	fgets(str2,max,f);
int x,m= 0,p,n=0,wordno=0,total1=0;
 
for(x=0;str1[x]!='\0';x++)
{
        if(str1[x]== ' ')
        {
 
                   for(p=m;p <= x;p++)
				   {
                           printf("%c",str1[p]);
						   strcpy(s2[p],str1[p]);
 
 
 
				   }
 
				   wordno = wordno+1;
				   total1=total1+1;
 
				   pkt[n].fragno=wordno;   
				   n=n+1;
 
				   printf("%d",wordno);
 
 
                   m = x + 1;
        }
 ;
printf("\n"); 
}
 
for(p = m; p <= x;p++)
{  
printf("%c",str1[p]); 
 
}
wordno=wordno+1;
total1=total1+1;
pkt[n].fragno=wordno;   
n=n+1;
printf("%d",wordno);
 
 
 
int x1,m1= 0,p1,total2=0;
 
for(x1=0;str2[x1]!='\0';x1++)
{
        if(str2[x1]== ' ')
        {
 
                   for(p1=m1;p1 <= x1;p1++)
				   {
                           printf("%c",str2[p1]);
 
 
 
				   }
				   wordno = wordno+1;
				   total2=total2+1;
 
 
				   pkt[n].fragno=wordno;
				   n=n+1;
				   printf("%d",wordno);
 
 
                   m1 = x1 + 1;
        }
 ;
printf("\n"); 
}
 
for(p1 = m1; p1 <= x1;p1++)
{  
printf("%c",str2[p1]); 
 
}
wordno=wordno+1;
total2=total2+1;
 
pkt[n].fragno=wordno;  
 n=n+1;
 
printf("%d",wordno);
 
for(int g=0;g<n;g++)
{
 
printf("\n%d" ,pkt[g].fragno);
 
}
pkt[n].total=total1;
 
printf("\n%d" ,pkt[n].total);
pkt[n].total=total2;
printf("\n%d" ,pkt[n].total);
 
 
return(0);
 
 
}

#include <iostream.h>
#include <conio.h>
#include <string.h>
#include <stdio.h>
 
struct packet
{
  char idenstr[60];
  int sentno;
  int fragno;
  int total;
  char payload[60]; 
}
pkt[20];
 
const int max = 60;
int main()
{ 
  struct packet
  {
    int fragno;
    char payload[60];
    int sentno;
    int total;
  }
  pkt[20]; 
  char str1[max], str2[max], s2[max];
  FILE *f;
  f = fopen ( "ee.txt", "r" );
  fgets ( str1, max, f );
  fgets ( str2, max, f );
  int x, m = 0, p, n = 0, wordno = 0, total1 = 0;
 
  for ( x = 0; str1[x] != '\0'; x++ )
  {
    if ( str1[x] == ' ' )
    {
      for ( p = m; p <= x; p++ )
      {
        printf ( "%c", str1[p] );
        strcpy ( s2[p], str1[p] ); 
      }
 
      wordno = wordno + 1;
      total1 = total1 + 1;
 
      pkt[n].fragno = wordno;
      n = n + 1;
 
      printf ( "%d", wordno ); 
      m = x + 1;
    };
    printf ( "\n" );
  }
 
  for ( p = m; p <= x; p++ )
  {
    printf ( "%c", str1[p] );
  }
  wordno = wordno + 1;
  total1 = total1 + 1;
  pkt[n].fragno = wordno;
  n = n + 1;
  printf ( "%d", wordno ); 
 
  int x1, m1 = 0, p1, total2 = 0;
 
  for ( x1 = 0; str2[x1] != '\0'; x1++ )
  {
    if ( str2[x1] == ' ' )
    {
      for ( p1 = m1; p1 <= x1; p1++ )
      {
        printf ( "%c", str2[p1] ); 
      }
      wordno = wordno + 1;
      total2 = total2 + 1; 
      pkt[n].fragno = wordno;
      n = n + 1;
      printf ( "%d", wordno ); 
      m1 = x1 + 1;
    };
    printf ( "\n" );
  }
 
  for ( p1 = m1; p1 <= x1; p1++ )
  {
    printf ( "%c", str2[p1] );
  }
  wordno = wordno + 1;
  total2 = total2 + 1;
 
  pkt[n].fragno = wordno;
  n = n + 1;
 
  printf ( "%d", wordno );
 
  for ( int g = 0; g < n; g++ )
  {
    printf ( "\n%d" , pkt[g].fragno );
  }
  pkt[n].total = total1;
 
  printf ( "\n%d" , pkt[n].total );
  pkt[n].total = total2;
  printf ( "\n%d" , pkt[n].total ); 
  return ( 0 ); 
}

#include <string>
#include <vector>
#include <sstream>
using namespace std;
 
int main()
{
    string word;
    vector<string> strlist;
    stringstream stream;
    stream << "i love to spend holidays in india";
    while( stream >> word)
    {
        strlist.push_back(word);
    }
    return 0;    
}