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@ -20,10 +20,11 @@ struct car* add_car(struct car* first,const char* target) {
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void print_train(struct car* first) {
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struct car* this = first;
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if(first == NULL){
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/*if(first == NULL){
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exit(0);
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}
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else{
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}*/
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//else{
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if(first != NULL){
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while(this != NULL){
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printf("%s\n", this->value);
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this = this->next;
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