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  1. #include<stdio.h>
  2. #include<iostream>
  3. #define gc getchar
  4. typedef long long ll;
  5. ll maxi;
  6. ll array[1000003];
  7. void bt1(ll index,ll value)
  8. {
  9. 	while(index<=maxi)
  10. 	{
  11. 		array[index]=array[index]+value;
  12. 		index=index+(index & -index);
  13. 	}
  14. }
  15. ll qt(ll a)
  16. {
  17. 	ll sum=0;
  18. 	while(a>0)
  19. 	{
  20. 		sum=sum+array[a];
  21. 		a=a-(a & -a);
  22. 	}
  23. 	return sum;
  24. }
  25. int main()
  26. {
  27. 	using namespace std;
  28. 	ll n,m,c,i,x,y,z,a,ans;
  29. 	string s;
  30. 	maxi=n+1;
  31. 	for(i=0;i<1000003;i++)
  32. 	array[i]=0;
  33. 	for(i=1;i<=n;i++)
  34. 	bt1(i,c);
  35. 	if(m>0)
  36. 	while(m--)
  37. 	{
  38. 		cin>> s;
  39.  
  40. 		if(s[0]=='S')
  41. 		{
  42. 			bt1(x,z);
  43. 			bt1(y+1,-z);
  44. 		}
  45. 		else
  46. 		{
  47. 			ans=qt(a);
  48. 			printf("%lld\n",ans);
  49. 		}
  50. 	}
  51. 	return 0;
  52. }
Success #stdin #stdout 0.01s 11272KB
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https://ideone.com/leS1pD
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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