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@ -43,12 +43,12 @@ void cancel_train(struct car* first) {
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if(first == NULL){
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if(first == NULL){
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return;
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return;
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}
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}
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if(first->next == NULL){
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if(first->next != NULL){
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free(first);
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cancel_train(first->next);
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first->next = NULL;
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}
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}
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else if(first->next != NULL){
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if(first->next == NULL){
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cancel_train(first->next);
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free(first);
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first->next = NULL;
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}
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}
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}
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}
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