comm

du4/a_train.c

@@ -5,25 +5,25 @@
 
 struct car* add_car(struct car* first,const char* target) {
     	struct car* new = calloc(1, sizeof(struct car));
-	if(!new) return first;
+	if(!new) return first;  // copirovanie cielvej stanice
 	strcpy(new->value,target);
 	if (first==NULL){
-		return new;
+		return new; // ak nebolo first, new bude prvy
 	}
 	
 	struct car* sm = first; 
 	while(sm->next!=NULL){
 		sm = sm->next;
 	}
-	sm->next = new;
+	sm->next = new; // pridavanie vozna na koniec
 	return first;
 	
 }
 
 void print_train(struct car* first) {
-	struct car* hlp = first;
+	struct car* hlp = first; //pomocna struktura
-	while(hlp!=NULL){
+	while(hlp!=NULL){ // ak je vozen
-		printf("Cielova stanica je %s\n",hlp->value);
+		printf("Cielova stanica je %s\n",hlp->value); // vypis cielovych stanic voznov
 		hlp = hlp->next;
 	
 	}
@@ -32,7 +32,7 @@ void print_train(struct car* first) {
 
 void cancel_train(struct car* first) {
 	if(!first) return;
-	cancel_train(first->next);
+	cancel_train(first->next); // recursivna funkcia, ktora vymaze uplne vlak
 	free(first);
 }
 
@@ -42,17 +42,17 @@ struct car* clear_train(struct car* first, const char* target) {
 	if (strcmp(first->value, target)==0){
 		struct car* tmp = first->next;
 		free(first);
-		return tmp;
+		return tmp; // vrati to co bolo vymazane ak bol iba jeden vozen
 	}
 	struct car* hlp = first;
 	while (hlp->next!=NULL&&strcmp(hlp->next->value,target)!=0){
-		hlp = hlp->next;
+		hlp = hlp->next; //hlada vozen
 	}
 	if (hlp->next!=NULL&&strcmp(hlp->next->value,target)==0){
 		struct car* del = hlp->next;
-		hlp->next=hlp->next->next;
+		hlp->next=hlp->next->next; // spoji predchadzajuci a nasledujuci vozen 
-		free(del);
+		free(del); //vymaze vozen
 	}
-	return first;
+	return first; // link na zaciatok vlaku
 }
 

du5/a_station.c

@@ -33,7 +33,7 @@ void destroy_station(struct station* station){
 int select_track(struct station* station, const char* target){
     	unsigned int hash = 0;
 
-    // Jednoduché hashovanie: sčítame všetky znaky
+    // sčítame všetky znaky
     for (int i = 0; target[i] != '\0'; i++) {
         hash += (unsigned char)target[i];
     }
@@ -46,7 +46,7 @@ void add_target_capacity(struct station* station,const char* target, int capacit
 	int track = select_track(station, target);
 	struct car* current = station->tracks[track];
 
-	    // 1. Ak je spojkový zoznam prázdny
+	    //Ak je spojkový zoznam prázdny
 	if (current == NULL) {
 		struct car* new_car = calloc(1, sizeof(struct car));
 		strcpy(new_car->value, target);
@@ -56,7 +56,7 @@ void add_target_capacity(struct station* station,const char* target, int capacit
 		return;
 	    }
 
-	    // 2. Prejdeme zoznam
+	    // Prejdeme zoznam ak existuje vozen z takym istym cielom
 	    struct car* prev = NULL;
 	    while (current != NULL) {
 		if (strcmp(current->value, target) == 0) {
@@ -67,7 +67,7 @@ void add_target_capacity(struct station* station,const char* target, int capacit
 		current = current->next;
 	    }
 
-	    // 3. Ak záznam neexistuje → pridáme nový na koniec
+	    // Ak záznam neexistuje → pridáme nový na koniec
 	    struct car* new_car = calloc(1, sizeof(struct car));
 	    strcpy(new_car->value, target);
 	    new_car->capacity = capacity;
@@ -93,7 +93,7 @@ int count_targets(struct station* station){
 	int count = 0;
 
 	for (int i = 0; i < station->track_count; i++) {
-		struct car* current = station->tracks[i];
+		struct car* current = station->tracks[i]; // scitavame vsetky mozne koniecne stanice
 		while (current != NULL) {
 	    		count++;
 	    		current = current->next;