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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. typedef long long int ll;
  4. typedef long double ld;
  5. #define rep(i,a,b)  for(ll i=a;i<b;i++)
  6. #define nl cout<<endl
  7.  
  8. #define pii pair<ll,ll>
  9. #define vi  vector<ll>
  10. #define vii vector<pii>
  11. #define mi  map<ll,ll>
  12. #define all(a)  (a).begin(),(a).end()
  13.  
  14. #define pb push_back
  15. #define ff first
  16. #define ss second
  17. #define hell 1000000007
  18.  
  19. #define test4(x,y,z,a) cout<<"x is "<<x<<"		y is "<<y<<"		z is "<<z<<"		a is "<<a<<endl;
  20. #define test3(x,y,z) cout<<"x is "<<x<<"		y is "<<y<<"		z is "<<z<<endl;
  21. #define test2(x,y) cout<<"x is "<<x<<"		y is "<<y<<endl;
  22. #define test1(x) cout<<"x is "<<x<<endl;
  23. #define N 300009
  24.  
  25. ll power(ll a,ll b,ll m)
  26. {
  27. 	ll ans=1;
  28. 	while(b)
  29. 	{
  30. 		if(b&1)
  31. 			ans=(ans*a)%m;
  32. 		b/=2;
  33. 		a=(a*a)%m;
  34. 	}
  35. 	return ans;
  36. }
  37. ll a,b,c;
  38. bool check(ll first,ll middle,ll last,ll num)
  39. {
  40. 	if(num<first || num<middle || num<last)
  41. 	return 0;
  42. 	ll haha=first+middle+last-(3*num);
  43. 	haha*=-1;
  44. 	if(haha<b)
  45. 	return 0;
  46.  
  47. 	//test1(haha);
  48. 	//test4(first,middle,last,num);
  49. 	return 1;
  50. }
  51. int main()
  52. {	
  53. 	ios_base::sync_with_stdio(false);
  54. 	cin.tie(NULL);
  55. 	cout.tie(NULL);
  56.         ll t;cin>>t;
  57. 	while(t--)
  58. 	{
  59. 		cin>>a>>b>>c;
  60. 		ll anss=hell;
  61. 		rep(a1,0,a+1)
  62. 		{
  63. 			rep(c1,0,c+1)
  64. 			{
  65. 				if(a1 && c1)
  66. 				continue;
  67.  
  68. 				ll ans;
  69. 				ll first=a-a1;
  70. 				ll middle=a1+c1;
  71. 				ll last=c-c1;
  72.  
  73. 				ll high=b+max(first,max(middle,last));
  74. 				ll low=min(first,min(middle,last));
  75. 				while(low<=high)
  76. 				{
  77. 					ll mid=(low+high)/2;
  78. 					if(check(first,middle,last,mid))
  79. 					{
  80. 						ans=mid;
  81. 						high=mid-1;
  82. 					}
  83. 					else
  84. 					low=mid+1;
  85. 				}
  86. 				anss=min(anss,ans);
  87. 			}
  88. 		}
  89. 		cout<<anss<<endl;
  90. 	}
  91. }
Runtime error #stdin #stdout 0.06s 4364KB
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https://ideone.com/dUJNR9
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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