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  1. #include <bits/stdc++.h>
  2. #define mod 1000000007
  3. #define lng long long
  4.  
  5. using namespace std;
  6. const double PI = 3.141592;
  7. const lng int INF_LL = (lng)(1e18);
  8. const int INF = 0x7fffffff;
  9.  
  10. int main(){
  11. 	std::ios::sync_with_stdio(false);
  12. 	freopen("input.txt","r",stdin);
  13. 	freopen("output.txt","w",stdout);
  14. 	int n;
  15. 	cin>>n;
  16. 		int arr[n+1],pos[n+1],neg[n+1];
  17.  
  18. 	for(int i=1;i<=n;i++){
  19. 		cin>>arr[i];
  20. 	}
  21. 	pos[0]=0;
  22. 	neg[0]=0;
  23.  
  24. 	for(int i=1;i<=n;i++){
  25. 		if(arr[i]<0){
  26. 			neg[i]=neg[i-1]+1;
  27. 			pos[i]=pos[i-1];
  28. 		}
  29. 		else if(arr[i]>0){
  30. 			pos[i]=pos[i-1]+1;
  31. 			neg[i]=neg[i-1];
  32. 		}
  33. 		else{
  34. 		neg[i]=neg[i-1];
  35. 		pos[i]=pos[i-1];
  36. 		}
  37. 	}
  38. 	int ans=INF;
  39. 	for(int i=1;i<n;i++){
  40. 		ans=min(ans,n-neg[i]-pos[n]+pos[i]);
  41. 	}
  42. 	cout<<ans<<endl;
  43. 	return 0;
  44. }
Runtime error #stdin #stdout #stderr 0s 3464KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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terminate called after throwing an instance of 'std::ios_base::failure'
  what():  basic_filebuf::underflow error reading the file
https://ideone.com/vROeco
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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