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#include <stdio.h>#include <stdlib.h>#define eil_ilg 200    FILE * f1;  FILE * f2;  FILE * f3;  char stringas[eil_ilg];  char stringas2[eil_ilg];  int klaida = 0;    struct eilsar {  char eilute[eil_ilg];  struct eilsar *kitas;  struct eilsar *atitink;  } *galva = NULL, *elem = NULL, *galva2 = NULL, *elem2 = NULL;struct eilsar* nau_elem (struct eilsar *head, struct eilsar *item,  char data[eil_ilg] ) {   item->kitas = head;   strcpy(item->eilute,data);   head = item;    item = NULL;return head;  }void ispausdinam(struct eilsar *pop ) {   do {fprintf(f3,"%s\n", pop->eilute);       if (pop->atitink != NULL) {           do {           fprintf(f3,"|->%s\n", pop->atitink->eilute);           pop->atitink= pop->atitink->atitink;}           while (pop->atitink != NULL);}       pop = pop->kitas;}   while (pop->kitas != NULL);   fprintf(f3,"%s\n\n", pop->eilute);}   struct eilsar* rusiavimas (struct eilsar *head, struct eilsar *head2 ) { struct eilsar *head2backup, *tarp;char eil1[eil_ilg], eil2[eil_ilg];                     char raid1, raid2;int lygu = 0, skirt = 0;int ilg1, ilg2;int n=0;   head2backup = head2;   do {   do {   strcpy(eil1,head->eilute);   strcpy(eil2,head2->eilute);   ilg1 = strlen(eil1);   ilg2 = strlen(eil2);   if (ilg1 == ilg2) {      for (n=0; n<=ilg1; n++) {      raid1 = eil1[n];      raid2 = eil2[n];       if (raid1 != raid2) {          skirt = skirt + 1;}}      if (skirt == 1) {lygu = 1;}}   if (lygu == 1) {      tarp = head->atitink;      head->atitink = head2;      head2->atitink = tarp;}          ilg1 = 0; ilg2 = 0; lygu = 0; skirt = 0;   head2 = head2->kitas;}   while (head2->kitas != NULL);   head= head->kitas;   head2 = head2backup;}   while (head->kitas != NULL);}int main(int argc, char *argv[]){ if (argc == 4) {if ((f1=fopen(argv[1],"r"))!=NULL) {         while (feof(f1) == 0){         elem = malloc(sizeof(struct eilsar));               fgets (stringas, eil_ilg , f1);         if (stringas == "") break;         galva = nau_elem(galva, elem, stringas);         strcpy(stringas, "");          }}    else {printf("Failas nerastas:\n%s\n", argv[1]);          klaida = 1;}                if (klaida ==0) {if ((f2=fopen(argv[2],"r"))!=NULL) {                          while (feof(f2) == 0){                          elem2 = malloc(sizeof(struct eilsar));                                fgets (stringas2, eil_ilg , f2);                          if (stringas2 == "") break;                          galva2 = nau_elem(galva2, elem2, stringas2);                          strcpy(stringas2, "");                          }}                     else {printf("Failas nerastas:\n%s\n", argv[2]);                           klaida = 1;}}                         if (klaida == 0){f3 = fopen(argv[3],"w");                     rusiavimas(galva,galva2);                     ispausdinam(galva);}}  else printf("Klaida: programa dirba su trimis failais,\nkuriu vardai ivedami kaip parametrai\n");system("PAUSE");	return 0;}