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mladenberakovic on 12/03/11

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Last Edited at 12/03/11 06:01am

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red_pokazivac.h

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Zadatak 3 - Strukture Podataka

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  1. #include <iostream>
  2. using namespace std;
  3. struct struktura{
  4. 	int x, y;
  5. 	struktura *slijedeci;
  6. };
  7. struct strukturaP{
  8. 	struktura *front,*rear;
  9. };
  10. typedef strukturaP queue;
  11. typedef struktura atrib;
  12.  
  13. queue *InitQ(queue *&Q){
  14. 	Q=new queue;
  15. 	atrib *novi=new atrib;
  16. 	Q->front=novi;
  17. 	Q->rear=novi;
  18. 	novi->slijedeci=NULL;    
  19. 	return Q;
  20. };
  21.  
  22. atrib FrontQ(queue *Q){
  23. 	atrib pom;
  24. 	pom.x=pom.y=-1;
  25. 	if(Q->rear != Q->front){
  26. 		pom.x=Q->front->slijedeci->x;
  27. 		pom.y=Q->front->slijedeci->y;
  28. 	}
  29. 	return pom;
  30. };
  31.  
  32. void EnQueueQ(atrib x, queue *Q){
  33. 	atrib *novi=new atrib;
  34. 	novi->x=x.x;
  35. 	novi->y=x.y;
  36. 	novi->slijedeci=NULL;
  37. 	Q->rear->slijedeci=novi;
  38. 	Q->rear=novi;
  39. };
  40.  
  41. void DeQueueQ(queue *Q){
  42. 	if(Q->rear != Q->front){
  43. 		atrib *pom=Q->front;
  44. 		Q->front=Q->front->slijedeci;
  45. 		delete pom;
  46. 	}
  47. 	else 
  48. 		cout<<"Prazan red!"<<endl;
  49. };
  50.  
  51. bool IsEmptyQ(queue *Q){
  52. 	if(Q->rear != Q->front)
  53. 		return false;
  54. 	return true;
  55. };

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