hw3/llrec.cpp at main · Ju-usc/hw3 · GitHub

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#include "llrec.h"
//*********************************************
// Provide your implementation of llpivot below
//*********************************************


void llpivot(Node *&head, Node *&smaller, Node *&larger, int pivot){

  if(head == nullptr){
    larger = nullptr;
    smaller = nullptr;
  }
  else if(head->next == nullptr){


    if(head->val > pivot){
      larger = head;
      smaller = nullptr;
    }
    else if(head->val <= pivot){
      smaller = head;
      larger = nullptr;
    }
    head = nullptr;
  }
  else if(head->val > pivot){
    larger = head;
    head = head->next;
    llpivot(head, smaller, larger->next, pivot);

  }

  else if(head->val <= pivot){
    smaller = head;
    head = head->next;
    llpivot(head, smaller->next, larger, pivot);

  }


}