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  1. #include<bits/stdc++.h>
  2. #define all(x)     (x).begin(),(x).end()
  3. #define allr(x)    x.rbegin(),x.rend()
  4. #define sz(x)      ((int)x.size())
  5. #define AbdElmawla std::ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  6. using namespace std;
  7. typedef unsigned long long int ull;
  8. typedef long long int ll;
  9. typedef long double ld;
  10. int dx[]= {-1,1,0,0,1,-1,1,-1};
  11. int dy[]= {0,0,1,-1,1,-1,-1,1};
  12. void solve()
  13. {
  14.     int n,m;cin>>n>>m;
  15.     int x,y,x2,y2;
  16.     cin>>x>>y>>x2>>y2;
  17.     if(x==x2&&y==y2)
  18.         cout<<0;
  19.     else if(x2<=x||m==1)
  20.         cout<<-1;
  21.     else{
  22.         int dis=x2-x,dis2=abs(y-y2);
  23.         if(abs(dis-dis2)%2==0)
  24.             cout<<dis;
  25.         else cout<<-1;
  26.     }
  27. }
  28. int main()
  29. {
  30.     AbdElmawla
  31.     freopen("doroob.in","r",stdin);
  32.     int t=1;
  33.     cin>>t;
  34.     while(t--)
  35.     {
  36.         solve();
  37.         if(t)
  38.             cout<<'\n';
  39.     }
  40. }
  41.  
Success #stdin #stdout 0.01s 5504KB
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Standard input is empty
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-1
https://ideone.com/wW95pJ
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

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