#include
#include
void main()
{
char str1[] = "This string contains the key.";
char str2[] = "the key";
char str3[] = "the keys";
if(strstr(str1, str2) == NULL)
printf("\nString not found.");
else
printf("\nString: %s\n was found in string: %s",str2, str1);
if(strstr(str1, str3) == NULL)
printf("\nString not found.");
else
printf("\nWe shouldn't get to here!");
}