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  1. #include <iostream>
  2. #define ll long long
  3. #include <cmath>
  4. using namespace std;
  5. bool check_oe(ll int a, ll int c){
  6.     if(a<0) a*=(-1);
  7.     if(c<0) c*=(-1);
  8.     if((a%2==0 and c%2==0) or (a%2==1 and c%2==1)) return false;
  9.     return true;
  10. }
  11. int main(){
  12.     int t;
  13.     cin>>t;
  14.     while(t--){
  15.         ll int a,b,c;
  16.         cin>>a>>b>>c;
  17.         if(check_oe(a,c)){
  18.             if(b==floor((double)(a+c)/2)) cout<<"1"<<endl;
  19.             else if(b<floor((double)(a+c)/2)) cout<<(1+floor((double)(a+c)/2)-b)<<endl;
  20.             else cout<<(b-floor((double)(a+c)/2))<<endl;
  21.  
  22.         }
  23.         else cout<<abs((a+c)/2-b)<<endl;
  24.  
  25.     }
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0s 4308KB
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https://ideone.com/ZcPzXw
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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