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  1. // Online C compiler to run C program online
  2. #include <stdio.h>
  3. #include<pthread.h>
  4. #include<stdlib.h>
  5.  
  6. pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
  7. pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
  8.  
  9. const int MAX = 99;
  10. int count = 0;
  11.  
  12. void* even (void *ptr)
  13. {
  14. 	pthread_mutex_lock(&mutex);
  15. 	while(count <= MAX)
  16. 	{
  17. 		if(count%2 != 0)
  18. 		{
  19. 			pthread_cond_wait(&cond, &mutex);
  20. 		}
  21. 	printf("%d\n", count++);
  22. 	pthread_mutex_unlock(&mutex);
  23. 	pthread_cond_signal(&cond);
  24. 	}
  25. 	pthread_exit(0);
  26. }
  27.  
  28. void* odd (void *ptr)
  29. {
  30. 	pthread_mutex_lock(&mutex);
  31. 	while(count <= MAX)
  32. 	{
  33. 		if(count%2 == 0)
  34. 		{
  35. 			pthread_cond_wait(&cond, &mutex);
  36. 		}
  37. 	printf("%d\n", count++);
  38. 	pthread_mutex_unlock(&mutex);
  39. 	pthread_cond_signal(&cond);
  40. 	}
  41. 	pthread_exit(0);
  42. }
  43. int main()
  44. {
  45. 	pthread_t t1,t2;
  46. 	pthread_create(&t1, NULL, even, NULL);
  47. 	pthread_create(&t2, NULL, odd, NULL);
  48.  
  49. 	pthread_join(t1, 0);
  50. 	pthread_join(t2, 0);
  51. }
  52.  
Success #stdin #stdout 0s 5304KB
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https://ideone.com/oV1dyi
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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