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Изменил(а) на 'cv4/a_train.c'

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This commit is contained in:
Oleksandr Hryshchenko 2021-11-05 08:40:52 +00:00
parent ac53ed8b42
commit 4859bc0ecc
1 changed files with 22 additions and 7 deletions
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29
cv4/a_train.c
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@ -7,7 +7,7 @@ struct car* add_car(struct car* first, const char* target){
if(!strcmp(target, ""))
return NULL;
if(!first){
if(!first || !strcmp(first->value, "")){
first = (struct car*)calloc(1, sizeof(struct car));
strcpy(first->value, target);
first->next = NULL;
@ -16,12 +16,12 @@ struct car* add_car(struct car* first, const char* target){
struct car* temp = first;
while(temp->next != NULL)
while(temp != NULL)
temp = temp->next;
temp->next = (struct car*)calloc(1, sizeof(struct car));
strcpy(temp->next->value, target);
temp->next->next = NULL;
temp = (struct car*)calloc(1, sizeof(struct car));
strcpy(temp->value, target);
temp->next = NULL;
return first;
}
@ -59,12 +59,27 @@ struct car* clear_train(struct car* first, const char* target){
while(temp != NULL){
next = temp->next;
if(!strcmp(temp->value, target))
free(temp);
if(!strcmp(temp->value, target)) {
if(temp == first) {
free(first);
first = NULL;
}
else
free(temp);
}
temp = next;
if(!first)
first = temp;
}
return first;
}
int main(){
struct car* myCar = (struct car*)calloc(1, sizeof(struct car));
myCar = add_car(myCar, "Kosice");
print_train(myCar);
myCar = clear_train(myCar, "Kosice");
print_train(myCar);
return 0;
}