Searching for sub-word

Code: Cpp

Code:

#include <string.h>
#include <stdio.h>

int main()
{
        char word[80], subword[80], *poz;
        printf("Enter wordn");
        scanf("%s",word);
        printf("Enter subwordn");
        scanf("%s",subword);
        if ((poz = strstr(word, subword)))
        {
                printf("%s is sub word of %s at position %dn",
                                subword,word,poz - word + 1);
        }
        else { printf("%s isn't subword of %sn",subword,word); }
        return 0;
}

 

Is this a demo program, or do you have some questions about it?
It's not very helpful just to post code without any kind of comments.