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  1.     #include "iostream"
  2. 	#include<stdio.h>
  3. 	using namespace std;
  4.  
  5. 	int main()
  6. 	{
  7. 		unsigned int i,n,o,c,dep,pos_d,pos_m,last_pos,max;
  8. 		char* arr,*rn;
  9. 		cin>>n;
  10.         //scanf( "%d", &n );
  11. 		fflush(stdin);
  12. 		arr = new char[2*n];
  13.         //arr = new char[2*n + 10];
  14. 		rn = fgets(arr, (2*n), stdin);
  15.         //scanf( "%s", &arr );
  16. 		c=o=dep=pos_d=pos_m=last_pos=max=0;
  17. 		for(i=0;arr[i];i++)
  18. 		{
  19. 			if(arr[i]==' ')
  20. 				continue;
  21.  
  22. 			else if(arr[i]=='1')
  23. 			{
  24. 				o++;
  25. 				if(c>0)
  26. 					c--;
  27. 				else
  28. 				{
  29. 					dep++;
  30. 					pos_d = (i/2)+1;
  31. 				}
  32. 			}
  33.  
  34. 			else if(arr[i]=='2')
  35. 			{
  36. 				c++;
  37. 				if(o>0)
  38. 					o--;
  39. 				if(o==0)
  40. 				{
  41. 					if(((i-last_pos+2)/2)>max)
  42. 					{
  43. 						max=(i-last_pos+2)/2;
  44. 						pos_m = 1+(last_pos+1)/2;
  45. 					}
  46. 					last_pos = i+1;
  47. 				}
  48. 			}
  49. 		}
  50. 		cout<<dep<<" "<<pos_d<<" "<<max<<" "<<pos_m;
  51. 		return 0;
  52. 	}
Success #stdin #stdout 0.01s 2816KB
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https://ideone.com/pAwWRm
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
secret

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