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  1. #include <stdio.h>
  2. #include <pthread.h>
  3. #include <stdlib.h>
  4. int tab[2000];
  5. pthread_t TH_begin;
  6. pthread_t TH_end;
  7. void search_From_begin(int val){
  8. 	int i;
  9. 	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,NULL);
  10. 	for(i=0;i<2000;i++){
  11.  
  12. 	  pthread_testcancel();
  13. 	  usleep(500);
  14.  
  15. 	  if(tab[i]==val){
  16. 	  	pthread_cancel(TH_end);
  17. 	  	printf("search begin find it first\n");
  18.  
  19. 	  }
  20. }
  21. 	printf("search begin not find it first\n");
  22. }
  23. void search_From_end(int val){
  24. 	int i;
  25. 	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,NULL);
  26. 	for(i=2000;i>-1;i--){
  27. 	  pthread_testcancel();
  28. 	  usleep(500);
  29.  
  30. 	  if(tab[i]==val){
  31. 	  	pthread_cancel(TH_begin);
  32. 	  	printf("search end find it first\n");
  33.  
  34. 	  }
  35. }
  36. printf("search begin not find it first\n");
  37. }
  38. void main(){
  39.  
  40. 	int i,j;
  41. 	for(i=0;i<2000;i++)
  42. 	tab[i]=i;
  43. 	do{
  44. 	printf("Entrer val:");
  45. 	scanf("%d",&j);
  46.   pthread_create(&TH_begin,NULL,&search_From_begin,j); 
  47.   pthread_create(&TH_end,NULL,&search_From_end,j); 
  48.   pthread_join(TH_begin,NULL); 
  49.   pthread_join(TH_end,NULL); 
  50. 	}while(1);
  51. }
  52.  
Time limit exceeded #stdin #stdout 5s 4532KB
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https://ideone.com/aWttqO
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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