#include <stdio.h>
#include <string.h>
 
int main()
{
    char str[] = "abc.def.swscan.apple.com";
    int init_size = strlen(str);
    char delim[] = ".";
    char *lastElement[2] = {0};
 
    char *ptr = strtok(str, delim);
 
    while(ptr != NULL)
    {
    	lastElement[0] = lastElement[1];
    	lastElement[1] = ptr;
 
        printf("'%s'\n", ptr);
        ptr = strtok(NULL, delim);
    }
    if(lastElement[2]) {
    	printf("%s\n", lastElement[2]);
    }
    return 0;
}
 

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