train

cv5/a_train.c

@@ -0,0 +1,54 @@
+#include "a_train.h"
+
+struct car* add_car(struct car* first,const char* target) {
+    struct car* newcar = calloc(1, sizeof(struct car));
+    strcpy(newcar->value, target);
+    if(first == NULL){
+        first = newcar;
+    }
+    else{
+        struct car *this = first;
+        while(this->next != NULL){
+            this = this->next;         
+        }
+        this->next = newcar;
+    }
+    return first;
+   
+}
+
+void print_train(struct car* first) {
+    struct car* this = first;
+    if(first == NULL){
+        printf("List is empty."); 
+        return;   
+    }
+    else{
+        while(this != NULL){
+            printf("%s\n", this->value);
+            this = this->next;
+        }
+    }
+}
+
+
+void cancel_train(struct car* first) {
+    if(first != NULL){
+        cancel_train(first->next);
+        free(first);
+    }
+}
+
+
+struct car* clear_train(struct car* first, const char* target) {
+    struct car* this = first;
+    while(this != NULL){
+        if(this->value == target){
+            return NULL;    
+        }
+        this = this->next;
+        
+    }
+    return first;
+}
+

cv5/a_train.h

@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef TRAIN_H
+#define TRAIN_H
+#define SIZE 100
+
+/**
+ * Jeden vozen vlaku
+ */
+struct car {
+    /**
+     * Nazov cielovej  stanice
+     */
+    char value[SIZE];
+    /**
+     * Smenik na dalsi vozen
+     */
+    struct car* next;
+};
+
+/**
+ * Prida vozen na koniec vlaku.
+ *
+ * @arg nazov cielovej stanice, ktory sa ma priradit novemu voznu.
+ * @return smernik na zaciatok vlaku.
+ */
+struct car* add_car(struct car* first,const char* target);
+
+
+/**
+ * Vypise vsetky vozne vo vlaku
+ *
+ * @arg smernik na prvy vozen
+ */
+void print_train(struct car* first);
+
+/**
+ * Zrusenie vsetkych voznov vo vlaku.
+ * @arg smernik na prvy vozen
+ */
+void cancel_train(struct car* first);
+
+/**
+ * Vyradenie vsetkych voznov, ktorych cielova stanica je target
+ *
+ * @arg smernik na prvy vozen
+ * @arg cielova stanica, ktora sa ma vyradit z vlaku.
+ * @return smernik na novy prvy vozen
+ *
+ */
+struct car* clear_train(struct car* first,const char* target);
+
+#endif // TRAIN_H