extern void qsort(void*, int, int, int (*)(const void*, const void*));
extern int cmp(char**a, char**b) { return strcmp(*a,*b); }
sort() {
extern void qsort(void*, int, int, int (*)(const void*, const void*));
extern int cmp(char**a, char**b) { return strcmp(*a,*b); }
sort() {