How to create substrings and compare them when the substrings to be created depends on the number of spaces in parent string

See more:

C

string

question is to create substrings of a string when we encounter space in it.

INPUT & OUTPUT
if input string is like "ram is raju" then output for this should be 3 as all the 3 substrings("ram","raju","is") are different and if input is like "ram is ram" then output should be 2 cause there only two different substrings "ram" and "is".

What I have tried:

this is my line of code for solving the problem.

but im unable to increase the counter from -1.
NOTE
i have started the counter from -1 cause when im comparing substrings for the first time then k's value will surely be not equal to 0 so as to bring the counter to zero i hve done this and due to my line of code i hve to compare e and d before copying d to e for the first time only.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main() {
	int t,i=0,j,k,count=-1,l;
	char s[100],d[100],e[100];
	scanf("%d",&t);
	while(t>0)
	{
	 gets(s);
	 l=strlen(s);
	 //strcpy(e,"klo");
	 while(i<l)
 {
	 while((i<l)&&(s[i]==' '))
	 {i++;}
	 j=0;
	 while((i<l)&&(s[i]!=' '))
	 {
	     d[j]=s[i];
	     i++;
	     j++;
	 }
	 k=strcmp(e,d);
	 if(k!=0)
	 {count++;}
	 strcpy(e,d);
}
	printf("%d",count);
	t--;
	}
	return 0;
}